CBSE Class 8 Answered
The ratio of angle between incident ray and mirror and incident angle is3:2. Find the angle of reflection and angle of incidence.
Asked by everything4u2005 | 10 Mar, 2019, 07:34: PM
Expert Answer
I guess the question is ' ratio of angle between incident ray and mirror to angle between incident ray and normal to mirror is 3:2 "
if angle between mirror and incident ray is 3x and angle between incident ray and normal is 2x , we have 3x+2x = 5x = 90 or x = 18
hence incident angle, i.e., angle between incident ray and normal = 2×18 = 36 , and angle of reflection = 36
Answered by Thiyagarajan K | 10 Mar, 2019, 08:25: PM
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