GSEB Class 11 Solutions Unit 6 Read 3 Suspect Identification

Comprehension

Question 1. Here is a list of words/phrases related to dating technology. Write each word in the appropriate column. One word/phrase may occur in more than one column or in none. stable form, ancient, natural objects, artifacts, trunks, changes, decay, atmosphere, radioactive

Answer:

Radiocarbon dating	Archaeomagnetic dating	Tree ring dating
stable form, ancient, natural objects, artifacts, decay, atmosphere, radioactive		trunks changes

In simple words: This table categorizes terms associated with various dating methods, helping to understand which words relate to radiocarbon, archaeomagnetic, or tree ring dating techniques.

🎯 Exam Tip: Understanding the specific vocabulary for each dating technique is crucial for precise answers and demonstrating knowledge of scientific dating methods.

 

2. Pick out the correct options:

Question 1. Radiocarbon dating is described In paragraph no....
(A) 2
(B) 3
(C) 4
(D) 2 & 3
Answer: (D) 2 & 3In simple words: The explanation of radiocarbon dating is found in both paragraph 2 and paragraph 3 of the text.

🎯 Exam Tip: For comprehension questions, always verify information by cross-referencing paragraph numbers to ensure accuracy in your answer.

 

Question 2. This text is about...
(A) radiocarbon dating and its advantages.
(B) radioactivity and processes based on it.
(C) history of objects.
(D) techniques of deciding how old an object is.
Answer: (B) radioactivity and processes based on it.In simple words: The core subject of this passage revolves around the concept of radioactivity and the various processes derived from it.

🎯 Exam Tip: When identifying the main idea, look for recurring themes and broad concepts rather than specific examples to capture the essence of the text.

 

Question 3. Tree ring fingerprinting, radiocarbon dating and archaeomagnetic dating are related to ...
(A) radioactivity.
(B) archaeological discoveries.
(C) conservation of trees.
(D) investigating age of objects.
Answer: (D) investigating age of objects.In simple words: All three mentioned techniques-tree ring fingerprinting, radiocarbon dating, and archaeomagnetic dating-are methods utilized to determine the age of various historical items.

🎯 Exam Tip: Grouping related concepts and understanding their overarching purpose helps in answering questions about relationships between different techniques or ideas.

 

Question 4. Radiocarbon dating would fail if...
(A) carbon 14 kept changing form.
(B) carbon 14 would decay fast.
(C) the rate of radioactive decay was unknown.
(D) the rate of radioactive decay was as fast as carbon 14.
Answer: (A) carbon 14 kept changing form.In simple words: If carbon-14 consistently changed its structure, radiocarbon dating would be ineffective because the method relies on its stable, predictable decay.

🎯 Exam Tip: For conditional questions, identify the critical assumption or stable factor required for a process to work; its absence or change would lead to failure.

Read 3: Dating Technology

 

Question 1. Which dating technologies are talked about in the text ?
Answer: The dating technologies discussed in this text include:
(1) Radiocarbon dating,
(2) Archaeomagnetic dating, and
(3) Tree ring dating.In simple words: The passage introduces three primary methods for determining age: radiocarbon, archaeomagnetic, and tree ring dating.

🎯 Exam Tip: When asked to list items from a text, ensure you extract all relevant points and present them clearly, often in a list format for readability.

 

Question 2. Why is dating technology needed ? Where is it used?
Answer: Dating technology is essential for determining the age of objects, which helps us understand historical events and the context in which specific items were utilized. Such investigations are performed by academics studying ancient cultures, geological formations, historical civilizations, or by professionals conducting criminal investigations.In simple words: Dating technology is crucial for understanding history and timelines of objects, used by historians, geologists, and crime investigators.

🎯 Exam Tip: A comprehensive answer addresses all parts of the question, covering both the 'why' (necessity) and 'where' (applications) of dating technology.

 

Question 3. Do you think it would be advisable to blindly trust dating technologies ? Why ?
Answer: Yes, it is generally considered appropriate to place trust in dating technologies because they are fundamentally based on rigorous scientific research, making them reliable and accurate. Unlike previous methods that often relied on mere assumptions, modern dating techniques provide a high degree of certainty and are considered foolproof, making them completely trustworthy.In simple words: Yes, it is wise to trust dating technologies because they are scientifically proven and offer reliable, accurate results, unlike older, assumption-based methods.

🎯 Exam Tip: When evaluating the trustworthiness of a method, emphasize its foundation in scientific principles and empirical evidence, contrasting it with less rigorous approaches.

 

Question 4. If in a criminal investigation, results of such dating tests don't match, what would the investigators do to reach the truth ?
Answer: Dating technology results are typically accurate unless the investigation agency has incorrect or incomplete reference data. If the necessary comparative data is stored correctly, scientific matching should be reliable. However, if dating tests yield discrepancies, investigators can resort to various other conventional and non-conventional methods to ascertain the truth.In simple words: If dating results don't align in a criminal case, investigators would use other conventional and unconventional methods, assuming the original data was correctly stored for comparison.

🎯 Exam Tip: In problem-solving scenarios, highlight alternative strategies or backup plans that can be employed when initial methods prove insufficient or yield inconsistent results.

Additional Questions

Reading Comprehension

1. Dating objects and artifacts is an interesting area of investigation. Investigators need to date objects to understand what happened around them and when it happened. It also helps to understand at what time in history a particular ' object was used. Such investigations are taken up by scholars studying historical civilizations, rocks, ancient cultures or crime investigators, etc.
Questions:
(1) How is 'Dating Technology' helpful in finding criminals ?
(2) Which professionals have taken up the investigations based an 'Dating Technology' ?
Answer:
(1) Dating technology aids investigators in criminal cases by precisely dating objects and events, which helps establish timelines and understand the historical context of an item's use.
(2) These types of investigations, relying on dating technology, are undertaken by various professionals, including scholars of historical civilizations, geologists studying rocks, experts in ancient cultures, and crime investigators.In simple words: Dating technology helps investigators by placing objects in a timeline for criminal cases, and it's used by historians, geologists, and crime scene investigators.

🎯 Exam Tip: When answering multi-part questions from an extract, break down the text to find specific answers for each sub-question, ensuring clarity and completeness.

(2) Other methods are also used like archaeomagnetic dating. This is based on reversal of magnetic field of the Earth. Tree ring dating is another useful technique. Each year changes occur within a tree by factors like rainfall, etc. These changes can be seen in form of ring patterns within the tree trunks. These are used as a date 'fingerprint' in this technique.
Questions:
(1) What is archaeomagnetic dating used for ? What is it based on ?
(2) How do changes occur within a tree ? Where are they seen ?
Answer:
(1) Archaeomagnetic dating serves to investigate historical objects, particularly in criminal contexts, by determining their age. This method is founded on the principle of reversals in the Earth's magnetic field.
(2) Changes within a tree happen annually due to environmental factors such as rainfall. These variations are visibly recorded as distinct ring patterns within the tree trunks.In simple words: Archaeomagnetic dating uses Earth's magnetic field changes to date objects, while tree ring dating identifies annual changes from factors like rainfall, visible as rings in trunks.

🎯 Exam Tip: Differentiate between dating methods by understanding their underlying scientific principles (e.g., magnetic field reversal vs. tree growth patterns) and their specific applications.

Vocabulary

 

Question 1. Here are some sentences in jumbled order. They form the beginning of the text. First of all arrange them in a correct order and in a paragraph form, and then replace the underlined words with the words close to the meanings given in the box.
soup, detective, earlier, ability, thief, bowl, details, criminal, priests, quiet
(1) Thanks to this sense, Valentin notices a series of very strange hints left behind by a couple of old clergies.
(2) The waiter suspected one of the two old priests who had come there prior time in the day.
(3) Valentin, a famous Parisian investigator, comes to London, on the trail of an equally-famous French thief, Flambeau.
(4) As a result, he manages to follow Flambeau's trail around London.
(5) Valentin notices the smallest portions very cleverly.
(6) When he sits in a peaceful restaurant, he finds salt in the sugar container.
(7) He has the extraordinary skill to place himself in the shoes of the wrong doer he is searching for.
(8) One of the priests splashed liquid food on the restaurant walls.
Answer:Valentin, a renowned Parisian investigator, arrives in London, pursuing an equally-notorious French plunderer, Flambeau. Valentin astutely observes the most minor particulars. He possesses an exceptional aptitude to empathize with the lawbreaker he is tracking. Thanks to this insight, Valentin identifies a sequence of peculiar indicators left by a pair of elderly clerics. When he settles into a tranquil eatery, he discovers salt in the sugar holder. The server suspected one of the two elderly clerics who had been there previously that day. One of the clerics spattered broth on the restaurant walls. Consequently, Valentin successfully follows Flambeau's path through London.In simple words: The jumbled sentences describing Valentin's pursuit of Flambeau and his observations in a restaurant have been rearranged into a coherent narrative, with specific words replaced by synonyms for enhanced professionalism.

🎯 Exam Tip: For jumbled sentences, identify the introductory sentence first, then link sentences by logical flow, pronouns, and chronological order; always verify the narrative's coherence post-arrangement.

 

Question 2. Match the letter for synonym with the text-words
In the text Synonyms
1. leftover A. famous
2. fake B. imaginary
3. fictional C. man-made object
4. trunk D. remaining portion
5. artifacts E. very old
6. legendary F. proof
7. ancient G. artificial
8. evidence H. doubt
9. tree ring dating I. tree body (without branches and roots)
10. suspect J. finding the period of existence through log-figure
Answer: (1-D), (2-G), (3-B), (4-I), (5-C), (6-A), (7-E), (8-F), (9-J), (10-H).In simple words: This exercise matches given words from the text with their appropriate synonyms to expand vocabulary.

🎯 Exam Tip: When matching synonyms, consider the context in which the word is used in the text, as some words have multiple meanings depending on the situation.

 

Question 3. Study the table and learn how nouns are formed by adding appropriate suffixes. Here are some examples:

Word	Suffix	Noun
investigate	-tion	investigation
confess	-sion	confession
appear	-ance	appearance
depend	-ence	dependence
attach	-ment	attachment

(A) Now form nouns of the following words / by using appropriate suffixes and use them in sentences of your own:
invite, guide, confer, attend, achieve, product, civilize, deliver, add, encourage
Answer:
• invite - invitation
I did not receive an invitation to her wedding.
• guide – guidance
I require your guidance in this situation.
• confer - conference
I was unable to attend the conference that day.
• attend - attendance
Due to his poor attendance record, he is disqualified from appearing in the examination.
• achieve - achievement
My heartfelt congratulations on your remarkable achievement!
• product – production
Manufacturers are increasingly concerned with optimizing production processes.
• civilize - civilization
Ancient Greece is widely recognized as one of the oldest civilizations.
• deliver – delivery
When did you receive the delivery of this new refrigerator?
• add - addition
No further additions can be made to this current draft.
• encourage - encouragement
Students frequently experience a lack of encouragement.
(B) Use a good dictionary and find out at least five nouns with each suffix.
Observation, permission, invasion, clearance, dependence, managementIn simple words: This exercise focuses on English morphology, demonstrating how to transform verbs into nouns by adding specific suffixes and then applying these new nouns in contextual sentences.

🎯 Exam Tip: Mastering suffix addition for noun formation enhances vocabulary and grammatical accuracy, crucial for both writing and comprehension tasks.

 

Question 1. Here's a sentence spoken by Flambeau from the story 'The Blue Cross'. Discuss with a friend and tick the closest meaning.
Words spilled out, “I'd rather prefer death to being tricked by a little priest.” This sentence means...
(a) Flambeau wanted to die because he was trapped by the priest.
(b) Flambeau realised that Father Brown had tricked him, now there was no point in living.
(c) Flambeau was angry to know that the priest had caught him.
(d) Flambeau would like to kill himself out of shame instead of being caught by that priest.
Answer: (d) Flambeau would like to kill himself out of shame instead of being caught by that priest.

The closest meaning for the sentence is option (d).

The phrase 'would rather than' in English indicates preference. When Flambeau states, "I'd rather prefer death to being tricked by a little priest," he expresses profound shame. This does not imply an actual desire to die, but rather a strong preference for one outcome (death) over another (being outsmarted by a priest), highlighting his intense dislike for the latter. It does not convey anger.In simple words: Flambeau's statement "I'd rather prefer death to being tricked by a little priest" signifies his overwhelming shame at being outsmarted, not an actual death wish, but a strong preference to avoid such humiliation.

🎯 Exam Tip: Analyze phrases like "would rather than" to grasp the speaker's emotional state and priorities, which often go beyond the literal meaning of the words.

 

Question 1. I would rather sleep happily instead of watching a movie.
Answer: This sentence conveys a preference for happily sleeping over the activity of watching a movie.In simple words: The speaker prefers sleeping peacefully over watching a movie.

🎯 Exam Tip: When interpreting "would rather" statements, clearly identify the preferred action and the alternative action that is being rejected.

 

Question 2. Seema would rather conduct an activity than take part in one.
Answer: This sentence indicates that Seema prefers to organize or lead an activity rather than simply participate in it.In simple words: Seema prefers leading an activity instead of just joining.

🎯 Exam Tip: Pay attention to the nuanced difference between "conduct" and "take part" to accurately interpret the preference expressed in the sentence.

 

Question 3. Randhir would rather travel by train than fly.
Answer: This sentence suggests that Randhir's preference is to travel by train instead of by air.In simple words: Randhir prefers traveling by train over flying.

🎯 Exam Tip: Identify the two modes of travel being compared to understand the explicit preference Randhir holds.

 

Question 4. I'd rather walk than go by car with my brother.
Answer: This sentence indicates a preference for walking over traveling by car with the brother.In simple words: The speaker prefers walking instead of riding in the car with their brother.

🎯 Exam Tip: Note the clear contrast between the two actions to pinpoint the speaker's chosen method of travel.

 

Question 5. I'd rather get punished by my father than by my mother.
Answer: This statement implies a preference for receiving punishment from the father, suggesting that being punished by the mother is less desirable.In simple words: The speaker finds punishment from their father more acceptable than from their mother.

🎯 Exam Tip: Understand that "would rather" expresses a comparative preference, even if both options are undesirable, indicating a lesser of two evils.

 

Question 2. 'Flambeau would rather die than be tricked by a little priest.' What would you rather do ?
Answer:
I would prefer to engage in play activities rather than complete my homework.
I would opt to avoid participating rather than facing embarrassment in front of the entire class.
I would choose to pursue employment instead of failing the 12th standard.
I would decide to express my disapproval rather than weep alone in solitude.In simple words: Given the choices, I prioritize enjoyable activities, avoiding public embarrassment, pursuing career opportunities over academic failure, and expressing dissent over solitary sadness.

🎯 Exam Tip: When responding to "what would you rather do," ensure your answer clearly states your preference and implicitly or explicitly explains the reason for that choice.

 

Question 3. Think of two movies you like. Now, ask four of your classmates to decide which film they'd rather watch. The rule of the activity is that they have to answer in the given format or you can't record their response.

Movie	Names of friends
3 Idiots	Tirth, Ankit
Tanu Weds Manu	Abhilasha, Krutangi

You will ask:
Which movie you'd rather watch, 3 Idiots or Tanu Weds Manu?
Your response :
• I would choose to watch '3 Idiots' because it effectively demonstrates the greater importance of life skills and practical knowledge over traditional classroom education.
• Tirth: I would prefer to watch '3 Idiots' because it is both educational and entertaining.
• Ankit: I would rather watch 'Tanu Weds Manu' because Kangana Ranaut's double role performance is unparalleled.
• Abhilasha says, "I would choose to watch 'Tanu Weds Manu' because the entire setup and comedic scenes are exceptionally well-executed."
• Krutangi prefers, "I would rather watch '3 Idiots' due to the excellent acting of all five main characters."In simple words: This activity involves surveying classmates to determine their movie preferences between '3 Idiots' and 'Tanu Weds Manu', with reasons highlighting themes, entertainment value, or acting.

🎯 Exam Tip: In preference-based activities, clearly state your choice and provide a concise, compelling justification that aligns with the core aspects of the options presented.

 

How many friends would like to watch the movie you like?
Answer: Two of my friends also prefer watching '3 Idiots,' which is the movie I like. Naturally, everyone has their unique reasons for their choices.In simple words: Two friends share my preference for '3 Idiots,' each with their own unique reasoning.

🎯 Exam Tip: When summarizing survey results, provide a clear count and acknowledge the diversity of individual preferences or reasons.

 

Question 4. Would you do the same or would you rather do something else?
(1) Tehmina is 14 years old. She has really long hair. Everyone at school teases her because of her hair. She has decided to go for a hair cut.
Answer: My response: I would not follow Tehmina's decision. I believe that long hair enhances my beauty, and I should be proud of it. Let those who tease be envious.In simple words: I would choose not to cut my long hair, embracing it as a part of my beauty despite teasing, letting others be jealous.

🎯 Exam Tip: When offering advice in scenarios, prioritize self-acceptance and confidence over conforming to peer pressure or negative opinions.

 

(2) Mitesh has scored very high marks in his tenth standard board exam. His father wants him to become a doctor. His mother wants him to become an engineer. His sister wants him to become an artist. He can't decide what he should do. His best friend wants to take up Psychology.
Answer: So, he selects Psychology. My response: I would rather follow the suggestions of my father, mother, or sister instead of my best friend's advice because I believe my family would have a better understanding of my future prospects than my friend.In simple words: Mitesh chose Psychology, but I would prioritize my family's career advice over a friend's, believing they have my best long-term interests in mind.

🎯 Exam Tip: When facing multiple conflicting opinions, evaluate the source of advice (e.g., family vs. friends) based on perceived long-term investment and understanding of personal potential.

 

(3) Rashmi is an 11th standard student. She is good in all her subjects except Physics. She s gets very confused in Physics. Her tuition teacher also keeps scolding her because of it. So, she stops attending Physics tuitions.
Answer: My response: I would prefer to change my tuition teacher. A good teacher would guide and motivate me instead of scolding, which would help me regain interest in Physics.In simple words: Instead of quitting, I'd change my Physics tutor to one who guides and motivates, helping me overcome confusion and revive interest in the subject.

🎯 Exam Tip: In academic challenges, consider changing methods or mentors (like a tutor) rather than abandoning a subject entirely, seeking support that fosters understanding and positive engagement.

 

(4) Shanta and her friend, Chris are going to school on a two wheeler. Their exams are going on. Shanta, in a hurry, doesn't realise that s an old lady is crossing the road. She dashes I; into her. The old lady falls down unconscious.I Shanta and Chris decide to call 108 but leave immediately because they don't want to be late for their exams.
Answer: My response: I would ask a passerby to call 108 on my behalf because it's unjust to leave an elderly lady unattended, and my exams are also important. With a sincere apology and request, I would prefer to have someone else manage the situation for me.In simple words: I would ask a passerby to call emergency services for the injured lady, as leaving her is wrong, but my exams are also critical, so I'd politely seek help for the situation.

🎯 Exam Tip: In ethical dilemmas, prioritize humanitarian responsibility while also considering personal obligations; seeking external assistance can provide a balanced solution.

 

Question 5. Go through the five previous tasks and notice how ‘would rather' is used. Discuss it with your bench-mate and decide when you would use 'would rather' in English,.
Note down observations like – 'would rather' can be used as 'I'd rather' when talking about myself.
According to us, ‘would rather' is used when we have to select a better option from two or for preferences. 'Would rather do something' means the other action or thing or activity you are negating. You would not do it prefering the other one. Can you find a similar usage in the readings ? I found the lines
You have still got the cross, and if you don't give it up, I'll take it by force in the passage
Now, think of an example on your own and write it below:
• I'd rather talk about this later.
• I'd rather do exercise than sit on the couch all day.
• I'd rather listen to my parents than get into trouble.
• I'd rather stay late than come in early tomorrow.
• I'd rather eat at home than get fast food.
Answer: The phrase "would rather" (or "I'd rather" for personal preference) is employed when expressing a choice between two alternatives, indicating a clear preference for one option while implicitly negating or rejecting the other. This grammatical structure is crucial for articulating desires or inclinations in comparative situations. Examples from everyday life include preferring to discuss a topic at a later time, choosing physical activity over prolonged inactivity, valuing parental advice to avoid problems, opting to work late rather than arriving early, or selecting home-cooked meals over fast food.In simple words: "Would rather" is used to show a preference between two things, choosing one action and rejecting another, often seen in daily choices like preferring to exercise or talk later.

🎯 Exam Tip: Understanding the function of modal verbs like "would rather" is essential for expressing preferences accurately in English and for interpreting similar expressions in texts.

Writing:

 

Question 1. Write a short biographical sketch of Mother Teresa. Use the given information.
Born: 27 August, 1910 of Albanian parents in Skopje.
1928: Joined convent in Ireland, 18-year-old
1929: Sent to Darjeeling, India
1931: Began teaching at Kolkata Girls' school.
1948: Left teaching-worked among the poor in slums of Kolkata
1950 – 1990 : Worked for the downtrodden, sick and suffering people
1979: Awarded the Nobel Peace Prize
Died: 5 September, 1997
Answer:Mother Teresa, born Agnes Gonxha Bojaxhiu on August 27, 1910, in Skopje (modern Macedonia), was of Albanian descent. At the age of eighteen, after spending her early years in Macedonia, she moved to Ireland to join a convent, embarking on her religious journey. In 1929, she was dispatched as a missionary to Darjeeling, India, where she acquired Bengali language skills and began teaching at St. Teresa's school. Her initial religious vows as a nun were taken on May 24, 1931. From 1931 to 1948, she taught Geography and Catechism at St. Mary's High School in Kolkata.
Deeply moved by the rampant poverty in Kolkata, she sought permission from her superiors and, in 1948, ceased teaching to dedicate herself to working among the destitute in the city's slums. Her profound commitment to serving the downtrodden, the sick, and the suffering, particularly lepers, continued from 1950 to 1990.
Mother Teresa's humanitarian efforts garnered global recognition and numerous accolades. These prestigious awards included the Pope John XXIII Peace Prize (1971), the Nehru Prize for the Promotion of International Peace and Understanding (1972), the Nobel Peace Prize (1979), and India's highest civilian honor, the Bharat Ratna (1980). She passed away on September 5, 1997, just nine days after her 87th birthday.In simple words: Mother Teresa, born in 1910 in Skopje, was an Albanian Roman Catholic sister and missionary who dedicated her life to serving the poor and suffering in Kolkata, receiving the Nobel Peace Prize in 1979 before her death in 1997.

🎯 Exam Tip: When writing a biographical sketch, organize information chronologically, highlighting key life events, significant contributions, and notable achievements to provide a comprehensive overview.

 

Question 2. Write a paragraph about 'Effective; Interview Skills'. Use the given points.
Points: preparation – entering the room - nervousness and fear - confidence - appearance and manners – positivity You may use the phrases: having cold feet, being on view, boosting up, current affairs, make sure, feel awkward, do well, common sense, presence of mind.
Answer:Effective interview skills are critical as candidates are constantly "on view," meaning every aspect, from body language to field knowledge, is meticulously assessed by interviewers. Thorough preparation is paramount, requiring candidates to research the company and the position. Practicing with sample questions, maintaining eye-contact, and recording mock sessions to identify areas for improvement are vital. Ensuring appropriate attire, having all testimonials ready, and knowing the route to the interview site well in advance minimizes stress. It's important to avoid "having cold feet" upon entering the interview room. While nervousness and fear can be detrimental, greeting interviewers warmly, waiting to be seated, maintaining eye-contact, and presenting a pleasant demeanor significantly boost one's impression. Crucially, a candidate's confidence should be "boosted up." Responding to questions requires common sense and "presence of mind" to navigate any confusion. Even if an answer isn't known, avoiding awkwardness and maintaining positivity is essential. A strong positive attitude can influence interviewers to believe a candidate deserves the role, even if immediate suitability is not apparent.In simple words: Effective interview skills involve extensive preparation, managing nervousness with confidence, presenting a positive appearance, and using common sense during questioning to make a strong impression on interviewers.

🎯 Exam Tip: For paragraph writing on skills, integrate provided keywords and phrases naturally, ensuring logical flow and comprehensive coverage of all points within a structured narrative.

 

Question 3. Write a brief summary of a detective movie/a short story/a real news story.
Murder of a Rich man
(A Detective Story.)
Answer:One day, at a small town's police station, a police inspector was reviewing old case files. As the clock struck eleven, his phone rang. The call informed him of a wealthy man's murder in town. Shocked, the inspector immediately dispatched his constables and headed to the rich man's residence, where they discovered the deceased's body on the floor.
Another man, identifying himself as the victim's manager, explained that he found the rich man dead that morning and promptly called the police. The inspector meticulously scanned the room for clues. Near the body, he noticed the dead man's wrist watch, which had stopped at exactly 11 o'clock. This detail sparked a realization: the watch must have stopped when it hit the floor with force during the fall. The inspector then deduced that the manager, who claimed to have found the body at 11 AM, was the killer, as he had called from the same house at that precise time.
Confronting the manager, the inspector immediately apprehended him, pressing him for the truth. The manager confessed to the murder and was subsequently arrested and jailed. The police inspector's keen intelligence was widely applauded.In simple words: A police inspector solves a rich man's murder by noticing the victim's watch stopped at the same time the manager claimed to have found the body, leading to the manager's confession and arrest.

🎯 Exam Tip: When summarizing a story, focus on the main characters, the central conflict, key plot points, and the resolution, ensuring the narrative remains concise and coherent.

Activity: A. How would you investigate these problems?

(1) Some ghosts scaring people on the roads late at night.
(2) Stone-throwing on the roof in a village.
(3) Flames of fire appearing In an abandoned house.
(4) Finding fresh flowers in a locked temple.
(5) When you wake up, you find one or two things displaced in your house. Discuss your ideas to find the reasons and solve the problem (in groups).
Answer: Students should engage in a group discussion, sharing their ideas on how to approach and solve each presented problem by using investigative methods. This activity encourages critical thinking and problem-solving skills.
In simple words: This activity asks students to think about how they would solve various mystery-like problems, encouraging them to discuss and come up with investigative solutions in groups.

🎯 Exam Tip: For activity-based questions, focus on demonstrating logical thinking and collaborative problem-solving, which are key evaluation criteria.

Question 2. Conduct Internet search on various detective characters found in English and Gujarati literature. Come to class and discuss any interesting anecdotes you have read about.

Answer: This task requires students to research prominent detective characters from both English and Gujarati literary works. They should then prepare to discuss any engaging or notable stories they have encountered about these characters in a classroom setting.
In simple words: Research famous detectives from English and Gujarati books, then share interesting stories about them with your class.

🎯 Exam Tip: Prepare notes on at least two characters from each language, including their key traits and a memorable anecdote, to score well on participation and understanding.

Dating Technology Summary In Gujarati

ગુનાશોધનમાં અન્ય એક પદ્ધતિ છે. ચીજવસ્તુઓ કે અવશેષોનું સમયનિર્ધારણ. જે-તે ઘટના ક્યારે બની તેનું સમયનિર્ધારણ થવાથી ગુનાશોધન વધારે સરળ બની જાય છે. રેડિયોએક્ટિવિટી પર ઘણી પદ્ધતિઓ આધારિત છે, જેમાંની એક છે રેડિયોકાર્બનથી થતું સમયનિર્ધારણ. તેમાં કાર્બન 12 તથા 13 સ્થાયી સ્વરૂપો છે, જ્યારે કાર્બન 14માં વાતાવરણ મુજબ ફેરફાર થતો રહે છે.

વનસ્પતિ અને પ્રાણીઓમાં કાર્બન 14 તેમના સમગ્ર જીવનકાળ દરમિયાન રહે છે અને તે જ્યારે મરી જાય છે ત્યારે રેડિયોઍક્ટિવ ક્ષીણતાના નિયમ મુજબ તેમનામાં કાર્બન 14 ઘટતો રહે છે. આ ઘટાડાનો અભ્યાસ કરવાથી વ્યક્તિ, પ્રાણી કે વનસ્પતિ ક્યારે મૃત થયું હશે તેની માહિતી મળી શકે છે.

આ સિવાયની પદ્ધતિમાં આર્કિઓમૅગ્નેટિક સમયનિર્ધારણનો સમાવેશ થાય છે. આ પદ્ધતિ પૃથ્વીના લોહચુંબકીય ક્ષેત્રના ફેરફાર પર આધારિત છે. વૃક્ષ કેટલું પુરાણું છે તે તેમાં રહેલાં વલયો પરથી નિશ્ચિત કરી શકાય છે. સંશોધનની આ પદ્ધતિને સમયની ‘ફિંગરપ્રિન્ટ ટેનિક' તરીકે ઓળખવામાં આવે છે.

Glossary (શબ્દાર્થ)

dating technology (n.) (डेटिंग ટેકનોલજી): (here) technology (to investigate crimes) that helps decide the time of the happening - ગુનાઓનો અભ્યાસ કરવા ઉપયોગમાં લેવાતી ટેક્નોલજી
date (v.) (ડેઈટ): find the period when an object or person existed or when something happened - કોઈ વસ્તુ કે વ્યક્તિ ક્યારે હયાત હતી કે કોઈ ઘટના ક્યારે બની તે સમય નક્કી કરવો તે
civilization (n.) (સિવિલાઇઝેશન): advance state of human society - સંસ્કૃતિ
ancient culture (n.) (એન્શન્ટ કલ્ચર): very old society / civilization - પ્રાચીન માનવસમાજ / સંસ્કૃતિ
artefact (n.) (આર્ટિફેક્ટ): an object produced by human craft - માનવસર્જિત વસ્તુ, હાથકારીગરીની વસ્તુ
radioactivity (n.) (રેડિયોઍક્ટિવિટી): the spontaneous emission of radiation from atomic nuclei, radiation - અણુકેન્દ્રનું આપોઆપ વિઘટન થવાની પ્રક્રિયા, કિરણોત્સર્ગ
radiocarbon dating (n.) (રેડિયોકાર્બન ડેટિંગ): a technique for measuring the age of ancient objects - પ્રાચીન વસ્તુઓના સમય માપવા માટેની ટેકનિક (પ્રવિધિ)
unstable (adj.) (અનસ્ટેબલ): fluctuating, not constant - અસ્થિર, સતત ચલિત રહેતું
upper atmosphere (n.) (અપર એટ્મોસ્ફીઅર): the gaseous envelope surrounding the earth on a higher level - ઉપલું વાતાવરણ
throughout (adv.) (થ્રૂ આઉટ): during the entire time - છેકથી છેક સુધી, સળંગ
exchange (v.) (ઇક્સચેન્જ): give in return for something received - કશુંક મેળવ્યા બદલ કશુંક (બીજું) પરત આપવું તે, અદલાબદલી
decrease (v.) (ડિક્રિીઝ): go down, become less - ઓછું થવું, ઘટવું
decay (v.) (ડિકે): decline, decrease - ઘટવું, ઓછું થઈ જવું
leftover (adj.) (લેફ્ટઓવર): remaining as unused portion or amount - શેષ, વપરાતાં વધેલું, વણવપરાયેલ ભાગ
organism (n) (ઓર્ગેનિઝમ): an individual form of life - કોઈ પ્રાણી કે વનસ્પતિ, સજીવ સર્જન
archeomagnetic dating (n.) (આર્કિઓમૅગ્નેટિક ડેટિંગ): an archeological technique for dating certain clay objects - માટીમાંથી બનેલી કેટલીક ચીજવસ્તુઓનો સમય પુરાતત્ત્વવિદ્યા મુજબ નક્કી કરવો તે
reversal (n.) (રિવર્સલ): state of turning backward - ઉલટાવું તે, વ્યુત્ક્રમ
magnetic field (n.) (મેગ્નેટિક ફિલ્ડ): the area within which the force of a magnet, etc. is effective - ચુંબકીય ક્ષેત્ર

Phrases And Idioms

take up (ટેક અપ): begin to associate with – ની સાથે જોડાવું, (કામ, પ્રકલ્પ) હાથમાં લેવો
based on (બેસ્ડ ઓન): built on, depended/relied on - ના પર આધારિત
at a rate (એટ અ રેટ): at a value, measure or degree - ના દરે

ભાષાંતર

વસ્તુઓ કે હાથકારીગરીની બનાવટોના સર્જનનું સમયનિર્ધારણ ? કરવું એ ગુનાશોધનનું એક રસપ્રદ ક્ષેત્ર છે. તેમની આસપાસ શું બન્યું અને તે ક્યારે બન્યું એ સમજવા ગુનાશોધકોને વસ્તુઓના સમયનિર્ધારણની જરૂર પડે છે. જે-તે વસ્તુ ઇતિહાસમાં (ભૂતકાળમાં) કયા સમયે વપરાઈ હતી, તે સમજવામાં પણ તે (સમયનિર્ધારણ) મદદરૂપ થાય છે. તજજ્ઞો ઐતિહાસિક સંસ્કૃતિઓ, ખડકો, પ્રાચીન રીતરિવાજો કે ગુનાશોધકો, વગેરેનો અભ્યાસ કરી આ પ્રકારની તપાસ હાથ ધરતા હોય છે.

કેટલીક ટેક્નિકો (પદ્ધતિઓ) વિવિધ પ્રાચીન કુદરતી વસ્તુઓ અને હાથકારીગરીની વસ્તુઓનો સમય નિર્ધારિત કરવા ઉપયોગમાં લેવાય છે. વિવિધ પદ્ધતિઓ કિરણોત્સર્ગ પર આધારિત છે. તેમાંની એક પદ્ધતિ એ વસ્તુમાં રહેલા કાર્બનના પ્રમાણથી સમયનિર્ધારણ કરવાની છે. રેડિયોકાર્બન કે કાર્બન 14 એ કાર્બન તત્ત્વનું (જ) સ્વરૂપ છે. તે અસ્થિર અને ઓછા પ્રમાણમાં કિરણોત્સર્ગી છે. કાર્બનનાં સ્થિર સ્વરૂપો કાર્બન 12 અને કાર્બન 13 છે. કાર્બન 14 સતત સ્વરૂપગત થાય છે. અને ઉપલા વાતાવરણમાં (જતાં) સ્વરૂપ બદલી નાખે છે.

વનસ્પતિ અને પ્રાણીઓ તેમના સમગ્ર જીવનકાળ દરમિયાન કાર્બન 14 લે છે. જ્યારે તે મૃત બને છે ત્યારે તે કાર્બનની ફેરબદલી બંધ કરી દે છે. અને તેમનો (નિહિન) કાર્બન 14 કિરણોત્સર્ગી ક્ષયના નિયમાનુસાર (તે દરથી) ઘટવાનું શરૂ કરી દે છે. આ પદ્ધતિ એ શેષ કિરણોત્સર્ગ પ્રક્રિયાના માપન માટે તૈયાર કરવામાં આવી છે. કોઈ પણ સજીવ કે તે ક્યારે મૃત્યુ પામ્યું તેની ઉંમર તેના નમૂનામાં કેટલા પ્રમાણમાં કાર્બન 14 શેષ રહ્યું તેના પરથી જાણી શકાય છે.

પુરાતત્ત્વચુંબકીય, સમયનિર્ધારણ જેવી અન્ય પદ્ધતિઓ પણ ઉપયોગમાં લેવામાં આવે છે. આ પદ્ધતિ પૃથ્વીના ચુંબકીય ક્ષેત્રના પરિવર્તન પર આધારિત છે. વૃક્ષના થડનાં વલયોથી થતું સમયનિર્ધારણ એ બીજી એક ઉપયોગી ટેનિક (પદ્ધતિ) છે. વરસાદ વગેરે પરિબળોને લીધે વૃક્ષમાં દર વર્ષે ફેરફાર થતા હોય છે. આ ફેરફારો વૃક્ષના થડમાં રહેલાં વલયોની ભાતથી જોઈ (સમજી) શકાય છે. આ ટેક્નિકમાં (પદ્ધતિમાં) (થડમાંનાં વલયોથી થતું સમયનિર્ધારણ) 'ફિંગરપ્રિન્ટ' તરીકે ઉપયોગમાં લેવાય છે.