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MHT CET Physics question

PhysicsWave OpticsMHT CET

The refractive index of piece of glass is 1.5 and it accommodates as many waves accommodated in 18 cm width of water column. If the refractive index of water is 1.33, then the thickness of glass piece will be

Answer: (D)

Solution

Equal number of waves means , so

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Question ID VK-077187