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JEE Main & Advanced Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Radioactivity and a,b rays

  • question_answer
    Which has the least penetrating power [CPMT 1994]

    A)                 \[\beta \]-rays 

    B)                 \[\alpha \]-rays

    C)                 \[\gamma \]-rays            

    D)                 \[X\]-rays

    Correct Answer: B

    Solution :

              a-rays has least penetrating power.


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