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MHT CET Physics question

PhysicsRay Optics and Optical InstrumentsMHT CET

In a optical fiber, the refractive index of the core is 1.5 and that of cladding is 1.42. The critical angle for core – cladding interface of the optical fiber is [MHT-CET 2008]

Answer: (C)

Solution

; exceeds 1 and

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Question ID VK-069549