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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 = 4/3). The difference between apparent depth of floor at A and B when seen from vertically above is equal to

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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 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 (Refraction index= 4//3 ).The difference between apparent depth of the floor at A &B when seen from vertically above is equal to

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The focal length of lens of refractive index 1.5 in air is 30cm When it is immersed in water of refractive index (4)/(3) ,then its focal length will be

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