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MHT CET Physics question

PhysicsRay Optics and Optical InstrumentsMHT CET

An air bubble is seen in a glass slab with refractive index 1.5. When viewed from one surface with normal incidence, it is 5 cm deep and when viewed from the opposite surface, it is 3 cm deep. The thickness of the slab is [MHT-CET 2009]

Answer: (D)

Solution

Real depths are cm and cm, so thickness cm;

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Question ID VK-069548