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A parallel sided block of glass of refra...

A parallel sided block of glass of refractive index 1.5 which is 36 mm thick rests on the floor of a tank which is filled with water (refractive index =4/30. The difference between apparent depth of floor at A & B when seen from vertically above is equal to

A

2 mm

B

3 mm

C

4 mm

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
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