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QJEEM22Ph1cbb: JEE Main 2022 Physics - Class 12 JEEM22Ph1cbb Solution: Light enters from air into a given medium at an angle of 45 ∘…

Light enters from air into a given medium at an angle of 45∘ with interface of the air-medium surface. After refraction, the light ray is deviated through an angle of 15∘ from its original direction. The refractive index of the medium is:

Multiple Choice Options

  • A 1.732
  • B 1.333
  • C 1.414
  • D 2.732

Step-by-Step Verified Solution

Let, refractive index of medium = μ

JEE Main 2022 (Online) 29th July Evening Shift Physics - Geometrical Optics Question 77 English Explanation

∴ r+15∘=45∘

⇒r=30∘

Using Snell's law,

1.sin⁡45∘=sin⁡30∘×μ

⇒12=12×μ

⇒μ=22=2=1.414

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