a ray of light incidents on a plane mirror at an angle of 90° to its surface. what willbbe the angle of reflection.
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The angle of incidence is measured with respect to the normal drawn at the point of incidence.
The incident ray makes an angle of 90° with the mirror surface.
So, angle of incidence = (90° - 90°) = 0°
According to the laws of reflection, the angle of incidence is equal to the angle of reflection.
∴ The angle of reflection = 0°
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