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If mu(1) and mu(2) are the refractive in...

If `mu_(1) and mu_(2)` are the refractive indices of the material of core and cladding respectively of an optical fiber, then

A

`sin^(-1)(n_(2)//n_(1))`

B

`sin^(-1) sqrt(n_(1)^(2)-n_(2)^(2))`

C

`[ tan^(-1)(n_(2))/(n_(1))]`

D

`[tan^(-1)(n_(1))/(n_(2))]`

Text Solution

Verified by Experts

The correct Answer is:
B
Core of acceptance angle `theta=sin^(-1)sqrt(n_(1)^(2)-n_(2)^(2))`.
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