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The speed of light in media M(1) and M(2...

The speed of light in media `M_(1) and M_(2)` are `1.5 xx 10^(8) and 2 xx 10^(8) ms^(-1)` respectively. A ray travels from medium `M_(1)` to the medium `M_(2)` with an angle of incidence `theta`. The ray suffers total internal reflection. Then the value of the angle of incidence `theta` is

A

`gt sin^-1 (3/4)`

B

`ltsin^-1 (3/4)`

C

`=sin^-1(4/3)`

D

`lesin6-1(3/4)`.

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