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A beam of monochromatic light is inciden...

A beam of monochromatic light is incident at `i= 50^(@)` on one face of an equilateral prism, the angle of emergence is `40^(@)`, then the angle of minimum deviation is :

A

`30^(@)`

B

`lt 30^(@)`

C

`le 30^(@)`

D

`ge 30^(@)`

Text Solution

Verified by Experts

The correct Answer is:
B
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