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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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