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In an optical fibre ,the refractive inde...

In an optical fibre ,the refractive index of the core material is

A

less than R.I. of cladding

B

more than R.I. of cladding

C

equal to R.I. of cladding

D

halfed to R.I. of cladding

Text Solution

Verified by Experts

The correct Answer is:
B
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