AIPMT MAINS2011Physics-Optics
AIPMT MAINS 2011 Physics Prisms MCQ Question
Type: MCQ-numerical-Medium-Class 12
A thin prism of angle 15° made of glass of refractive index μ₁ = 1.5 is combined with another prism of glass of refractive index μ₂ = 1.75. The combination of the prisms produces dispersion without deviation. The angle of the second prism should be
A
12°
B
5°
C
7°
D
10°
Correct Answer
Option D
Detailed Explanation
For dispersion without deviation, the deviation produced by both prisms must cancel each other. Using the formula for deviation, the angle of the second prism is calculated to be 10°.
Found an issue with this question?