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  1. When a light wave is reflected from a mirror, there is a change in its

  2. A.

     Frequency

    B.

     Amplitude

    C.

     Wavelength

    D.

     Velocity

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    Answer : Option B

    Explanation :

    When a light wave is reflected from an object, it changes not only its amplitude but also its phase according to the properties of the object at a particular point. The velocity and momentum are just reversed in another direction.


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