a ray incident on a plane mirror is reflected in a direction such that the angle between the incident and the reflected ray 90° . what are the angle of incidence reflection
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1
the angle of incident is 90°
152:
as we know angle of incidence is equal to angle of reflection
so the sum of both are 90 then one will be 45
therefore by claculating it it would be 45
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2
the angle of incidence from normal must be 45 degree becouse in planw mirror angle of incidence = angle of reflection
let x=x =90
2x =90 x=90/2=45
let x=x =90
2x =90 x=90/2=45
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