Question:
When the path of a light ray refracted through a glass prism is reversed, how will the angle of deviation change? Explain.
When the path of a light ray refracted through a glass prism is reversed, how will the angle of deviation change? Explain.
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Reversibility of light → Same path → Same angle of deviation.
Updated On: Feb 26, 2026
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Solution and Explanation
Explanation:
- Refraction of light through a prism obeys the principle of reversibility of light.
- If the path of the light ray is reversed, it retraces the same path in the opposite direction.
- Therefore, the angle of deviation remains unchanged.
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