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प्रश्न
A ray of light is incident on a plane mirror making an angle of 90° with the mirror surface. The angle of reflection for this ray of light will be:
(a) 45°
(b) 90°
(c) 0°
(d) 60°
उत्तर
(c) 0o, since angle of incidence = 0o .
According to the first law of reflection, the angle of incidence is equal to the angle of reflection.
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