NEET2020Physics-Optics
NEET 2020 Physics Prism MCQ Question
Type: MCQ-conceptual-Medium-Class 12
A ray is incident at an angle of incidence i on one surface of a small angle prism (with angle of prism A) and emerges normally from the opposite surface. If the refractive index of the material of the prism is μ, then the angle of incidence is nearly equal to:
A
μA
B
μA/2
C
A/2μ
D
2A/μ
Correct Answer
Option A
Detailed Explanation
For small angle prisms, the angle of incidence is approximately equal to the product of the refractive index and the angle of the prism. Hence, the correct answer is μA.
Found an issue with this question?