An incident ray makes 60 degree angle with the surface of the plane mirror. What will be the angle of reflection? (ਜੇਕਰ ਆਪਾਤੀ ਕਿਰਣ ਇੱਕ ਸਮਤਲ ਦਰਪਣ ਦੀ ਸਤਿਹ ਨਾਲ 60 ਡਿਗਰੀ ਦਾ ਕੋਣ ਬਣਾਉਂਦੀ ਹੈ ਤਾਂ ਪਰਾਵਰਤਨ ਕੋਣ ਕਿੰਨਾਂ ਹੋਵੇਗਾ? *
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Glancing angle is the angle between the ray and the surface instead of angle between the ray and normal to the surface.
Glancing angle of incidence
=90 −Angle of incidence (which is same as the angle of reflection)
=90 −60 =30
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