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MHT CET Physics question

PhysicsWave OpticsMHT CET

A glass slab of thickness 10 cm contains same number of waves as 12.5 cm of liquid when monochromatic wave traverse through. If the R.I of glass 3/2 the R.I of liquid is:

Answer: (A)

Solution

μ_g × 10 = μ_l × 12.5 gives μ_l = 15/12.5 = 6/5; 4/3 and 10/6 are not

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Question ID VK-076956