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  3. RAJASTHAN ­ PET

RAJASTHAN ­ PET Rajasthan PET Solved Paper-2003

  • question_answer
    If total torque of the system is zero, then the total angular momentum of the system will be constant at

    A)  direction

    B)  both direction and magnitude

    C)  magnitude

    D)  None of the above

    Correct Answer: B

    Solution :

     \[\tau =\frac{d\overrightarrow{L}}{dt}\] If\[\overrightarrow{\tau }=0,\]then \[\overrightarrow{L}=\]constant Therefore, angular momentum will be constant at direction and magnitude.


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