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JEE Main & Advanced Physics Nuclear Physics And Radioactivity Question Bank Self Evaluation Test - Nuclei

  • question_answer
    Consider \[\alpha \] particles, \[\beta \] particles and \[\gamma \] - rays, each having an energy of 0.5 MeV. In increasing order of penetrating powers, the radiations are:

    A)  \[\alpha ,\,\,\beta ,\,\,\gamma \]

    B)  \[\alpha ,\,\,\beta ,\,\,\gamma \]

    C)  \[\beta ,\,\,\gamma ,\,\,\alpha \]

    D)  \[\gamma ,\,\,\beta ,\,\,\alpha \]

    Correct Answer: A

    Solution :

    [a] The penetrating power is dependent on velocity. For a given energy, the velocity of y radiation is highest and a-particle is least.


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