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Question

In the figure, a point source P is placed at a height h above the plane mirror in a medium of refractive index μ. An observer O, vertically above P, outside the liquid, sees P and it image in the mirror. The apparent distance between these two is :
1703522_e22a1a4c1687480c9954e133c053e957.png

A
2μh
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B
2hμ
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C
2hμ1
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D
h(1+1μ)
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Solution

The correct option is D 2hμ
We know, μ=Real depthApparent depth

Apparent Depth=Real depthμ
Apparent Depth=hμ

Now this image acts as the object for the mirror.
For a mirror, image distance= object distance
Apparent distance between them= 2hμ



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