Parallel light beam strikes a smooth surface reflecting
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Explanation:
When a parallel light rays strikes a smooth surface it gets reflected back in the same direction and making same with the incident ray.
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Explanation:
Thus, a plane mirror produces regular reflection of light. Since the angle of incidence and the angle of reflection are the same or equal, a beam of parallel rays falling on a smooth surface is reflected as a beam of parallel light rays in one direction only
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