If the angle between the plane mirror and the incidence ray is 40° , what are the angles of incidence and reflection?
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If the angle between the plane mirror and the incidence ray is 40° , what are the angles of incidence and reflection?
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Answer:
50 degree
Explanation:
i+40
∘
=90
∘
⇒∠i=50
∘
Using laws of reflection , we have :
∠i=∠r=50
∘