JEE MAIN - Physics (2021 - 16th March Morning Shift - No. 6)
The angle of deviation through a prism is minimum when
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(A) Incident ray and emergent ray are symmetric to the prism.
(B) The refracted ray inside the prism becomes parallel to its base
(C) Angle of incidence is equal to that of the angle of emergence
(D) When angle of emergence is double the angle of incidence
Choose the correct answer from the options given below :
(A) Incident ray and emergent ray are symmetric to the prism.
(B) The refracted ray inside the prism becomes parallel to its base
(C) Angle of incidence is equal to that of the angle of emergence
(D) When angle of emergence is double the angle of incidence
Choose the correct answer from the options given below :
Statements (B) and (C) are true
Only statements (A) and (B) are true
Statements (A), (B) and (C) are true
Only statement (D) is true
Explanation
_16th_March_Morning_Shift_en_6_2.png)
Deviation is minimum in prism when :
i = e, r1 = r2 and ray inside prism is parallel to base of prism.
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