NEET 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 :

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


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