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JEE Main & Advanced Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Rate of decay and Half-life

  • question_answer
    A radioactive element decays at such a rate that after 15 minutes only 1/10 of the original amount is left. How many more minutes will be needed when only 1/100 of the original amount will be left

    A)                 1.5 minutes       

    B)                 15.0 mintues

    C)                 16.5 minutes     

    D)                 30 minutes

    Correct Answer: D

    Solution :


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