Question

A plane mirror is held at a height h above the bottom of an empty beaker. The beaker is now filled with water up to depth . The general expression for the distance from a scratch at the bottom of the beaker to its image in terms of and the depth of water in the beaker is :

A

B

C

D

Hard
Solution
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Correct option is C)

shift observed is

object distance wrt mirror is  

image distance from mirror is

distance of image from the scratch at the bottom of beaker is

option is correct 

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