1.

The angle of a prism is 60°. When light is incident at an angle of 60°on the prism, the angle of emergence is 40°. The angle of incidence i for which the light ray will deviate the least is such that  (A) i < 40° (B) 40° < i < 50° (C) 50° < i < 60° (D) i > 60° 

Answer»

The Correct option is  (B) 40° < i < 50°



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