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MHT CET Physics question

PhysicsRay Optics and Optical InstrumentsMHT CET

Light of wavelength 7200 Å in air has wavelength in glass () equal to

Answer: (B)

Solution

λ_g = λ_air/μ = 7200/1.5 = 4800 Å; 7200 Å ignores the change, 10800 Å multiplies by μ and 7201.5 Å adds μ. Hence the correct option is (b).

Question ID VK-076950