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12th Class Chemistry Nuclear Chemistry / नाभिकीय रसायन Question Bank Critical Thinking Nuclear chemistry

  • question_answer
    Half-life of radium is 1580 yrs. Its average life will be [AIIMS 1999; AFMC 1999; CPMT 1999]

    A)            \[2.5\times {{10}^{3}}yrs\]    

    B)            \[1.832\times {{10}^{3}}yrs\]

    C)            \[2.275\times {{10}^{3}}yrs\]

    D)            \[8.825\times {{10}^{2}}yrs\]

    Correct Answer: C

    Solution :

           Average life period = \[1.44\times {{t}_{1/2}}\]                    \[1.44\times 1580=2275.2=2.275\times {{10}^{3}}yrs\text{.}\]


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