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A transparent cube of side d, made of a ...

A transparent cube of side d, made of a material of refractive index `mu_(2)` , is immersed in a liquid of refractive index `mu_(1)(mu_(1)ltmu_(2))`. . A ray is incident on the face AV at an angle `theta` (shown in the figure). Total internal refraction takes place at point E on the face BC. Then must satisfy:

A

`theta lt sin^(-1)sqrt((mu_(2)^(2))/(mu_(1)^(2))-1)`

B

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

C

`theta lt sin^(-1).(mu_(1))/(mu_(2))`

D

`theta gt sin^(-1)sqrt((mu_(2)^(2))/(mu_(1)^(2))-1)`

Text Solution

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The correct Answer is:
A
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