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A ray of light passes from vaccume into ...

A ray of light passes from vaccume into a medium of refractive index n. if the angle of incidence is twice the angle of refraction, then the angle of incidence is

A

`cos^(-1)0.8`

B

`sin^(-1)0.8`

C

`2 cos^(-1) 0.8`

D

`2 sin ^(-1)0.8`

Text Solution

Verified by Experts

The correct Answer is:
C
`1.6=(sin i)/(sin r)=(2 sin i//2cdot cos i//2)/(sin i//2)`
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