NEET Sample Paper NEET Sample Test Paper-16

  • question_answer 60) The wavelength of\[\,{{\,}_{6}}{{C}^{14}}\] is\[2.31\times {{10}^{-4}}.\]Its half-life is

    A) \[2\times {{10}^{3}}\,years\]

    B) \[1.5\times {{10}^{3}}\,years\]

    C)  \[3\times {{10}^{3}}\,years\]

    D) \[2.5\times {{10}^{3}}\,years\]  

    Correct Answer: C

    Solution :

    As half-life \[=\frac{0.693}{\lambda }\] \[=\frac{0.693}{2.31\times {{10}^{-4}}}=3\times {{10}^{3}}\,\text{years}\] Hence, the correct option is (c).

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