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

  • question_answer
    The unit of potential energy is [AFMC 1991]

    A) \[g(cm/{{\sec }^{2}})\]

    B) \[g{{(cm/\sec )}^{2}}\]

    C) \[g(c{{m}^{2}}/\sec )\]

    D) \[g(cm/\sec )\]

    Correct Answer: B

    Solution :

    Potential energy \[=mgh=g\left( \frac{cm}{{{\sec }^{2}}} \right)cm=g{{\left( \frac{cm}{\sec } \right)}^{2}}\]


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