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Question

A plane mirror is placed at the bottom of the tank containing a liquid of refractive index μ . P is a small object at a height h above the mirror. An observer O-vertically above P outside the liquid see P and its image in the mirror. The apparent distance between these two will be 



A
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B
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C
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D
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Solution

The correct option is B

Image formation by a mirror (either plane or spherical) does not depend on the medium.
The image of P will be formed at a distance h below the mirror. If d = depth of liquid in the tank.

Apparent depth of P=x1=dhμ

Apparent depth of the image of P=x2=d+hμ

Apparent distance between P and it's image =x2x1=2hμ


Physics

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