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NEET Sample Paper NEET Sample Test Paper-53

  • question_answer
    The ratio of Earth's orbital angular momentum (about the Sun) to its mass is\[4.4\times {{10}^{15}}\,{{m}^{2}}/s\]. The area enclosed by Earth's orbit is approximately.

    A) \[6.94\times {{10}^{22}}{{m}^{2}}\]

    B) \[6.94\times {{10}^{20}}{{m}^{2}}\]

    C) \[6.94\times {{10}^{18}}{{m}^{2}}\]

    D) \[6.94\times {{10}^{24}}{{m}^{2}}\]

    Correct Answer: A

    Solution :

    \[\frac{dA}{dt}=\frac{J}{2m}\] \[Area=\,\,\left( \frac{J}{2m} \right)\,\,\times \,\,365\text{ }\times \,\,86400\] \[=\,\,\,\frac{1}{2}(4.4\times {{10}^{15}})\times 365\times 86400\] \[=\,\,6.94\times {{10}^{22}}\]


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