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CBSE Class 10 Answered

A ray of light is deviated by an angle of 60' by a plane mirror.Find
a)angle of incidence
b)angle of reflection
c)angle between mirror and incident ray.
Explain with a diagram.
Asked by SHUBHAM GHODE | 20 Mar, 2017, 04:08: PM
answered-by-expert Expert Answer
 
(a) Angle of deviation δ = 180 – 2i
Given that δ = 60º
→ 2i = 120
→ i = 60º
(b) According to law of reflection angle i = angle r = 60º
 
(c) From the geometry of the figure, it is clear that the angle with the mirror surface 30º.
Answered by Yashvanti Jain | 20 Mar, 2017, 07:03: PM

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