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  1. In a Laser (say neon laser) all the atoms emit the light waves of

    2. A.

     Same frequency
    B.

     Same amplitude
    C.

     Same phase
    D.

     All of the above

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    Answer : Option D

    Explanation :

    In a Laser all the atoms emit the light waves of same frequency, amplitude and phase. A laser is a device that emits light (electromagnetic radiation) through a process of optical amplification based on the stimulated emission of photons. The term “laser” originated as an acronym for Light Amplification by Stimulated Emission of Radiation.

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