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Apparent Depth

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Question

There is a small air bubble inside a glass sphere $(μ = 1.5)$ of radius 10 cm. The buble is 4.0 cm below the surface and is viewed normally form the outside.The apparent depth of the bubble is

A

3 cm below surface

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B

6 cm below surface

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C

9 cm below surface

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D

12 cm below surface

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Solution

The correct option is A 3 cm below surface
Option A is correct

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