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NEET Sample Paper NEET Sample Test Paper-92

  • question_answer
    Under a constant torque the angular momentum of a body changes from A to 4A in 4 second. The torque on the body will be

    A) \[1\,A\]             

    B)        \[\frac{1}{4}A\]

    C) \[\frac{4}{3}A\]            

    D)        \[\frac{3}{4}A\]

    Correct Answer: D

    Solution :

    [d]   Torque\[=\frac{dL}{dt}=\frac{4A-A}{4}=\frac{3}{4}A\] [dL is change in angular momentum]


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