For the same angle of incidence, the angles of refraction in three different media A, B and C are 15°, 25°, and 35° respectively. In which medium will the velocity of light be minimum?
Refraction Plane Surfaces
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Question

For the same angle of incidence, the angles of refraction in three different media A, B and C are 15°, 25°, and 35° respectively. In which medium will the velocity of light be minimum?

KnowledgeBoat · Accepted Answer

Medium A will have the minimum velocity of light. Reason — For the same angle of incidence, the medium in which the angle of refraction is smallest has the highest refractive index. Here, the angles of refraction are: - In A = 15° - In B = 25° - In C = 35° Since, 15° is the smallest angle, medium A has the greatest refractive index. We know that: So, the greater the refractive index, the smaller is the velocity of light in that medium. ∴ Velocity of light is minimum in medium A.

Physics

For the same angle of incidence, the angles of refraction in three different media A, B and C are 15°, 25°, and 35° respectively. In which medium will the velocity of light be minimum?

Refraction Plane Surfaces

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