Perpendicular
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What is meant by angle between reflected ray and incident ray , the angle of deviation or the sum of angles of incidence and reflection ? ( For a plane mirror )
Angle between reflected and incident rays in plane mirror reflection
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Stonebridge
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The angle of deviation would be the angle D in the diagram.
It would be equal to 180 - (i+r)
Because r = i for a mirror then it could be expressed as
D = 180 - 2i
So the angle you refer to is 180 - D
It would be equal to 180 - (i+r)
Because r = i for a mirror then it could be expressed as
D = 180 - 2i
So the angle you refer to is 180 - D