the angle between an incident ray and reflected ray in a mirror is 90 degree what is the value of reflection ?
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Angle of reflection is 45 drgree
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If the reflected ray is at the angle of 90o to the incident ray, then the angle of incidence is 45o. According to the law of reflection, the angle of incidence and the angle of reflection are equal. Therefore, the angle of incidence and the angle of reflection both are 90/2=45o.
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