For the angle of minimum deviation of a prism to be equal to its refracting angle, the prism must be made of a material whose refractive index :-
(1) is less than 1
(2) is greater than 2
(3) lies between 2 and 1
(4) lies between 2 and 2

Dear Student ,
The solution of the question is given below:


Here the correct option is 4 .
Regards

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