JEE Main & Advanced Physics Mathematical Tools, Units & Dimensions Question Bank Units

  • question_answer
    Joule-second is the unit of [CPMT 1990; CBSE PMT 1993; BVP 2003]

    A) Work

    B) Momentum

    C) Pressure

    D) Angular momentum

    Correct Answer: D

    Solution :

    \[\tau =\frac{dL}{dt}\] ? \[dL=\tau \times dt\]\[=r\times F\times dt\] i.e. the unit of angular momentum is joule-second.


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