A light ray travels from air to glass with an angle of incidence of 45°. The possible angle of refraction is
- 45°
- 65°
- 90°
- 30°
The Correct Option is D
Solution and Explanation
Correct answer: 30°
When a light ray travels from a rarer medium (air) to a denser medium (glass), it bends towards the normal. This means the angle of refraction is smaller than the angle of incidence.
Given: - Angle of incidence = 45°
- Glass is denser than air Therefore, the angle of refraction must be less than 45°. Among the options, only 30° satisfies this condition. So, the correct answer is 30°.
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