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  1. When cathode rays strike a target of high atomic weight, they give rise to

    2. A.

     alpha-rays
    B.

     beta and gamma rays
    C.

     X-rays
    D.

     Positive rays

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    Answer : Option C

    Explanation :

    When cathode rays strike a solid target of high atomic weight and high melting point such as tungsten, molybdenum, etc, they give rise to a highly penetrating radiation called the X-rays (LIT Physics by Dr. P.K Agarwal).

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