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when a glass prism of refracting angle 6...

when a glass prism of refracting angle `60^(@)` is immersed in a liquid, its angle of minimum deviation is `30^(@)` . The critical angle of glass prism with respect to the liquid medium is

A

`42^(@)`

B

`45^(@)`

C

`50^(@)`

D

`52^(@)`

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The correct Answer is:
B
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