Question

In a classroom. four friends found out the focal length of a lens by conducting experiment. The value came out to be12.1cm, 12.2 cm, 12.05 cm, 12.3 cm. Thefriends discussed the reasons for the differencesdifferences or defects. Mention those reasons.​

Answer 1

Answer:

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Answer 2

According to me the defects have occurred because of the following reasons:-

1. It could be the instrumental faults means the instruments that we are purchasing, there could be some minor difference in them.
2. Different students could have passed the rays from different positions which can also lead to a minor difference in its focal length.
3. There could also be some fault in the lens means the lens could be broken some some edges which may lead to deflection of the rays.

Hope it helps............