Question

Does focal length of a spherical mirror changes when it is completely immersed in the water ? Predict and write the reason
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Answer 1

QUESTION :-

Does focal length of a spherical mirror changes when it is completely immersed in the water ? Predict and write the reason

ANSWER :-

No, focal length does changes when mirror is immersed completely in the water. Because reflection does not depend on surrounding medium.

Answer 2

Answer:

There will be no change in mirrors focal length which is going to be immersed in water. In the spherical mirrors, the focal length will depend on the external medium to be held. So the focal length increases.