Refer to CBSE Class 12 Physics Communication Systems MCQs provided below available for download in Pdf. The MCQ Questions for Class 12 Physics with answers are aligned as per the latest syllabus and exam pattern suggested by CBSE, NCERT and KVS. Multiple Choice Questions for Chapter 15 Communication Systems are an important part of exams for Class 12 Physics and if practiced properly can help you to improve your understanding and get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 12 Physics and also download more latest study material for all subjects
MCQ for Class 12 Physics Chapter 15 Communication Systems
Class 12 Physics students should refer to the following multiple-choice questions with answers for Chapter 15 Communication Systems in Class 12.
Chapter 15 Communication Systems MCQ Questions Class 12 Physics with Answers
Question : Communication is the process of
(a) keeping in touch
(b) exchange information
(c) broad casting
(d) entertainment by electronics
Answer: B
Question : Which of the following is the element of a communication system?
(a) Transmitter
(b) channel
(c) Receiver
(d) All of the above
Answer: D
Question : A transducer used at the transmitting end, serves the purpose of converting
(a) electrical signal to sound form
(b) sound signal to electrical form
(c) electrical signal to magnetic form
(d) sound signal to magnetic form
Answer: B
Question : The term channel is used to indicate
(a) the amplitude range allocated to a given source
(b) the frequency range allocated to a given source
(c) the voltage-range allocated to a given source
(d) All of the above
Answer: B
Question : Buffer amplifier is used at the transmitting end to
(a) feed carrier frequency to master oscillator
(b) amplify carrier frequency
(c) mix modulating signal with carrier frequency
(d) isolate master oscillator from other stages of transmitter.
Answer: D
Question : During ground wave propagation the transmitted waves gets attenuated because
(a) earth surface absorbs the waves
(b) frequency of the waves are too low
(c) energy content of these waves are high
(d) earth surface offers resistance.
Answer: D
Question : Wave obtained on superimposition of audible frequency e.m. wave is known as
(a) carrier wave
(b) high frequency wave
(c) modulating wave
(d) modulated wave
Answer: D
Question : The AM wave is equivalent to the summation of
(a) two sinusoidal waves
(b) three sinusoidal waves
(c) four sinusoidal waves
(d) None of these
Answer: B
Question : As the height of satellite orbit gets lower, the speed of the satellite
(a) increases
(b) decreases
(c) remain same
(d) both (a) and (b)
Answer: B
Question : Which of the following is drawback of amplitude modulation?
(a) low efficiency
(b) noise reception
(c) operating range is small
(d) all of these
Answer: D
Question : For a radio wave reaching the ionised medium
(a) will bend away from normal
(b) will bend towards normal
(c) will bend follow a straight-path
(d) None of these.
Answer: A
Question : Audio signal cannot be transmitted because
(a) the signal has more noise
(b) the signal cannot be amplified for distance communication
(c) the transmitting antenna length is very small to design
(d) the transmitting antenna length is very large and impracticable
Answer: D
Question : The service area of space wave communication increases by
(a) increasing the height of transmitting antenna
(b) decreasing the height of receiving antenna
(c) increasing the height of both transmitting and receiving antenna
(d) decreasing the distance between transmitting and receiving antenna
Answer: C
Question : 12 signals each band limited to 5 kHz are to be transmitted by frequency-division multiplexer. If AM-SSB modulation guard band of 1 kHz is used then the bandwidth of multiplexed signal is
(a) 101 kHz
(b) 99 kHz
(c) 84 kHz
(d) 71 kHz
Answer: D
Question : An audio frequency of 10 kHz is transmitted by SSB after AM with carrier waves of frequency 1MHz. The frequency of current in output load is
(a) 1010 kHz or 990 kHz
(b) 1010 MHz or1010 MHz
(c) 110 kHz or 990 kHz
(d) 110 MHz or 990 MHz
Answer: A
Question : In an amplitude modulated wave for audio frequency of 500 cycle/second, the appropriate carrier frquency will be
(a) 50 cycles/s
(b) 100 cycles/s
(c) 500 cycles/s
(d) 50, 000 cycles/s
Answer: D
Question : To cover a population of 20 lakh, a transmission tower should have a height: (radius of the earth = 6400 km, population per square km = 1000)
(a) 25 m
(b) 50 m
(c) 75 m
(d) 100 m
Answer: B
Question : In FM, when frequency deviation is doubled, then
(a) modulation is halved
(b) carrier swing is halved
(c) modulation is doubled
(d) modulation index is decreased
Answer: C
Question : Television signals are
(a) frequency modulated
(b) amplitude modulated
(c) both frequency and amplitude modulated
(d) phase modulated
Answer: C
Question : In PCM if the transmission path is very long
(a) pulse spacing is reduced
(b) pulse amplitude is increased
(c) pulse width is increased
(d) repeater stations are used.
Answer: D
CBSE Class 12 Physics Electric Charges and Fields MCQs |
CBSE Class 12 Physics Electrostatic Potential and Capacitance MCQs |
CBSE Class 12 Physics Current Electricity MCQs |
CBSE Class 12 Physics Moving Charges and Magnetism MCQs |
CBSE Class 12 Physics Magnetism and Matter MCQs |
CBSE Class 12 Physics Electromagnetic Induction MCQs |
CBSE Class 12 Physics Alternating Current MCQs |
CBSE Class 12 Physics Electromagnetic Waves MCQs |
CBSE Class 12 Physics Gravitation MCQs |
CBSE Class 12 Physics Ray Optics and Optical Instruments MCQs |
CBSE Class 12 Physics Wave Optics MCQs |
CBSE Class 12 Physics Dual Nature of Radiation and Matter MCQs |
CBSE Class 12 Physics Atoms MCQs |
CBSE Class 12 Physics Nuclei MCQs |
CBSE Class 12 Physics Semiconductor Electronics Materials Devices and Simple Circuits MCQs |
CBSE Class 12 Physics Communication Systems MCQs |
More Study Material
MCQs for Physics CBSE Class 12 Chapter 15 Communication Systems
Expert teachers of studiestoday have referred to NCERT book for Class 12 Physics to develop the Physics Class 12 MCQs. If you download MCQs with answers for the above chapter daily, you will get higher and better marks in Class 12 test and exams in the current year as you will be able to have stronger understanding of all concepts. Daily Multiple Choice Questions practice of Physics and its study material will help students to have stronger understanding of all concepts and also make them expert on all critical topics. After solving the questions given in the MCQs which have been developed as per latest course books also refer to the NCERT solutions for Class 12 Physics designed by our teachers
Chapter 15 Communication Systems MCQs Physics CBSE Class 12
All MCQs given above for Class 12 Physics have been made as per the latest syllabus and books issued for the current academic year. The students of Class 12 can refer to the answers which have been also provided by our teachers for all MCQs of Physics so that you are able to solve the questions and then compare your answers with the solutions provided by us. We have also provided lot of MCQ questions for Class 12 Physics so that you can solve questions relating to all topics given in each chapter. All study material for Class 12 Physics students have been given on studiestoday.
Chapter 15 Communication Systems CBSE Class 12 MCQs Physics
Regular MCQs practice helps to gain more practice in solving questions to obtain a more comprehensive understanding of Chapter 15 Communication Systems concepts. MCQs play an important role in developing understanding of Chapter 15 Communication Systems in CBSE Class 12. Students can download and save or print all the MCQs, printable assignments, practice sheets of the above chapter in Class 12 Physics in Pdf format from studiestoday. You can print or read them online on your computer or mobile or any other device. After solving these you should also refer to Class 12 Physics MCQ Test for the same chapter
CBSE MCQs Physics Class 12 Chapter 15 Communication Systems
CBSE Class 12 Physics best textbooks have been used for writing the problems given in the above MCQs. If you have tests coming up then you should revise all concepts relating to Chapter 15 Communication Systems and then take out print of the above MCQs and attempt all problems. We have also provided a lot of other MCQs for Class 12 Physics which you can use to further make yourself better in Physics
You can download the CBSE MCQs for Class 12 Physics Chapter 15 Communication Systems for latest session from StudiesToday.com
Yes, you can click on the links above and download topic wise MCQs Questions PDFs for Chapter 15 Communication Systems Class 12 for Physics
Yes, the MCQs issued by CBSE for Class 12 Physics Chapter 15 Communication Systems have been made available here for latest academic session
You can easily access the links above and download the Chapter 15 Communication Systems Class 12 MCQs Physics for each topic
There is no charge for the MCQs and their answers for Class 12 CBSE Physics Chapter 15 Communication Systems you can download everything free
Regular revision of MCQs given on studiestoday for Class 12 subject Physics Chapter 15 Communication Systems can help you to score better marks in exams
Multiple Choice Questions (MCQs) for Chapter 15 Communication Systems Class 12 Physics are objective-based questions which provide multiple answer options, and students are required to choose the correct answer from the given choices.
Learning Chapter 15 Communication Systems based MCQs will help students improve their overall understanding of important concepts and topics and help to score well in Class 12 Physics exams.
You can practice Chapter 15 Communication Systems for CBSE Class 12 through worksheets, textbooks and online quizzes provided by studiestoday.com.
You can find CBSE Class 12 Physics Chapter 15 Communication Systems MCQs on educational websites like studiestoday.com, online tutoring platforms, and in sample question papers provided on this website.
To prepare for Chapter 15 Communication Systems MCQs, refer to the concepts links provided by our teachers and download sample papers for free.
Yes, there are many online resources that we have provided on studiestoday.com available such as practice worksheets, question papers, and online tests for learning MCQs for Class 12 Physics Chapter 15 Communication Systems
Yes, you can find printable Chapter 15 Communication Systems worksheets for CBSE Class 12 Physics on studiestoday.com.
We have provided full database of free multiple choice questions with answers on studiestoday.com for CBSE Class 12 Physics Chapter 15 Communication Systems