Published by:
CGP EDU Academic Team
Published on: September 13, 2026
When one light ray is reflected from a plane mirror with 30° angle of reflection, the angle of deviation of the ray after reflection is:
Text Solution
Verified by ExpertsThe correct answer is:
A
It is given that i = 30°.
The formula for angle of deviation is
= 180° -2i
Substituting the values,
= 180° -60° = 120°
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