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Discussion :: Communication Systems

  1. DVD uses

    2. A.

     Laser beam for both recording and playback
    B.

     Laser beam for recording and video head for playback
    C.

     Video head for recording and laser beam for playback
    D.

     None of the above

    View Answer

    Workspace

    View Answer

    Answer : Option A

    Explanation :

    Explanation Not Provided

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