A glass slab of thickness 3 cm and refractive index 3/2 is placed on ink mark on a piece of paper. For a person looking at the mark at a distance 5.0 cm above it. the distance of the mark- will appear to be

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answer is 2.

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Detailed Solution

The apparent depth of ink mark Real depthμ=33/2=2 cmThus person views mark at a distance - 2 + 2 = 4 cm.

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