JEE PHYSICS MCQ: RAY OPTICS

1 Medium

1 of 1

Understanding +4 | -1

The optical fibres have an inner core of refractive index

{n_1}

and a cladding of refractive index

{n_2}

such that

View answer and explanation

Correct option: D

{n_1} > {n_2}

Option D (

{n_1} > {n_2}

) is correct because for total internal reflection to occur within the optical fiber, the refractive index of the core must be greater than that of the cladding.

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