The speed of light in media 'A' and 'B' ...

The speed of light in media 'A' and 'B' are `2.0 xx 10^(10) cm//s and 1.5 xx 10^(10) cm//s` respectively. A ray of light enters from the medium B to A at an incident angle `'theta'`. If the ray suffers total internal reflection, then

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

`theta gt sin^(-1) ((2)/(3))`

`theta lt sin^(-1) ((3)/(4))`

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

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