JEE Mains · Physics · STD 12 - Ray optics and optical instruments
- JEE Mains 2025
- Medium
- MCQ
Consider following statements for refraction of light through prism, when angle of deviation is minimum.
(A) The refracted ray inside prism becomes parallel to the base.
(B) Larger angle prisms provide smaller angle of minimum deviation.
(C) Angle of incidence and angle of emergence becomes equal.
(D) There are always two sets of angle of incidence for which deviation will be same except at minimum deviation setting.
(E) Angle of refraction becomes double of prism angle.
Choose the correct answer from the options given below.
Pick an option to check your answer.
Answer & Solution
Correct Answer
(A) A, C and D Only
Step-by-step Solution
Detailed explanation
\(\delta=\mathrm{I}+\mathrm{e}-\mathrm{A}\)
For \(\delta_{\text {min }} \Rightarrow \mathrm{I}=\mathrm{e}\) and refracted ray is parallel to base \(\mathrm{A}, \mathrm{C}, \mathrm{D}\) are correct
For \(\delta_{\text {min }} \Rightarrow \mathrm{I}=\mathrm{e}\) and refracted ray is parallel to base \(\mathrm{A}, \mathrm{C}, \mathrm{D}\) are correct
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