CBSE Class 10 Science Physics VBQs

VALUE BASED QUESTIONS FOR CLASS 10

TOPIC:REFLECTION AND REFRACTION

1. Vivek Sharma while driving his bike sees a woman behind driving a moped through his rear vew mirror. He sees that her saree almost touching the wheels of the vehicle. He stops her and alerts

Contextual question

What kind of mirror is used as a rear view mirror? Draw a ray diagram for the same mirror when the object is placed between pole and infinity her and she ties the saree properly. 

Value based question

What values you observe in Mr. Sharma? 

Value points

     1. Concern about others

     2. Observation of Traffic rules

     3. Responsible citizen

2. Deepak’s mom is finding difficult to cook in the kitchen as there was power cut, and she was complaining about it to Deepak. He immediately took a plane mirror from his shelf made it stand against a wall such that sun’s rays were focussed into the kitchen due to the reflection of the mirror. There was some lighting and his mother was able to finish her work.

Contextual question

What are the characteristics of the image formed by a plane mirror?

Value based question

What values did Deepak display? 

Value points

    1.helping his mother

    2. Is able to apply his mind at required times

3. Mrs Vincent, grade 5 teacher find that her students do not draw when she draws on the board. Every time she had to turn towards them to see whether they draw and label the diagrams. John, one of her students fixed two big convex mirrors at the two sides of the black board. Wit h this Mrs. Vincent was able to draw and also supervise her students through the mirror. All the students did their work properly.

Contextual question

A convex mirror has R= 3m . An object placed at 5m from this mirror , find the position and nature of the image.

Value based question

What values did John exhibit?

Value points

   1.Helping teacher and his peer group

   2. application of knowledge

4. A boy is looking at the sun through a convex lens. His brother immediately takes away the lsns and explains why he shouldn’t do it.

Contextual question

        What happens when parallel rays of light fall on a convex lens. Draw a ray diagram and explain the rule, hence define principle focus of convex lens. (.5 +1.5)

Value based question

       What values does the brother show?

Value points

1.concern for his brother

2.knowledge of precautionary measure

5. Kajal who has just begun to learn swimming is in the pool. Suddenly she finds her gold earing falling into the water. She feels that the earing has not gone too deep and sh e goes into the water to retrieve it..Her trainer observing this pulls her out.

Contextual question

      The letters appear raised when viewed through a glass slab. why? What is meant by lateral displacement in a glass slab. (1+1)

VALUE BASED QUESTION

What value does the trainer show?

Value points

1. Trainer concerned about the safety of the students

2. Presence of mind of the trainer, timely action.

6. Mala a class 10 student observes a slide in the bio-lab. She is not able to view clearly and seeks teachers help. The teacher adjusts the microscope and also explains how 2 lenses can be combined for effective viewing. With the teacher’s input, Mala combines a conv ex and concav e lens and obtains an image on the screen. She was able to explain her friends the additive nature of power.

Contextual question

       Define SI unit of power. What is the power of lens whose focal length is +20cm. 

VALUE BASED QUESTION

       What value does Mala display? 

Value points

1.Is interested in sharing the acquired knowledge with her peer group

2. Team work

7. The class room was very dark due to the cloudy day. The teacher asked the students to switch on all the lights, as it was difficult to view the board for the students.

Contextual question

       How will the size of pupil change with brightness?

VALUE BASED QUESTION

       What value did the teacher exhibit?

Value points

1.Awareness

2. concern for the students

8. Mr Ananth, was standing outside in the evening, enjoying the light drizzle after the rain. Suddenly he observed a rainbow in the sky. He called his father and asked him, what it is and how is it formed? His father explained him about its formation and also told him that a similar phen omena can be observed with prism also.

Contextual question

      What is the name of the phenomena? Which colour deviates more and why?

VALUE BASED QUESTION

      What value did Ananth’s father exhibit?

Value points

1.understanding

2. caring

9. Ms. Vijaya, a maid servant of Ramji, complained that she was unable to read the magazines. Mr Ramji realising that she had an eye problem and took her to an eye doctor and got her eye checked. He also bought a new set of lenses for her.

Contextual question

        What is the name of the eye defect that Ms vijaya is suffering from? What type of lens did doctor prescribe to her? 

VALUE BASED QUESTION

        What value did Mr. Ramji exhibit?

Value points

1. Kindness

2. Compassion 

3. Concern for others

Please refer to the link below for CBSE Class 10 Science VBQs - Physics