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Physics · Geometrical Optics

JEE Main 2026 — 2 April, Morning Shift — Question 11

For a thin symmetric prism made of glass (refractive index 1.5), the ratio of incident angle and minimum deviation will be

  1. Option A:

    3:43:4

  2. Option B:

    3:23:2

    Correct
  3. Option C:

    2:12:1

  4. Option D:

    1:21:2

Answer: B

Step-by-step solution

δm=(μ−1)A=0.5A\delta_{\mathrm{m}} = (\mu-1)A = 0.5A, i=A+δm2=0.75Ai = \frac{A+\delta_m}{2}=0.75A → i/δm=3/2i/\delta_m = 3/2

Answer key and solution verified before publishing.

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Exam
JEE Main 2026
Paper
2 April, Morning Shift
Subject
Physics
Chapter
Geometrical Optics
Topic
Apparent Depth, Glass Slab, Prism and Dispersion
For a thin symmetric prism made of glass (refractive index 1.5), the… | JEE Main 2026 PYQ with Solution · DhiX AI