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      Question

      A ray of light hits a mirror and is reflected. If the

      mirror rotates by an angle 10° in one direction, then the reflected ray will rotate by
      A 10° Correct Answer Incorrect Answer
      B 20° Correct Answer Incorrect Answer
      C 5° Correct Answer Incorrect Answer
      D 15° Correct Answer Incorrect Answer

      Solution

      If the plane mirror is rotated by 10 degrees in clockwise direction, then the angle between the incident and reflected rays increases by 20 degrees.

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