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    Question

    Choose the wrong

    statement
    A Work done is a scalar quantity Correct Answer Incorrect Answer
    B Work done by a body does not depend on the time taken to complete the work Correct Answer Incorrect Answer
    C Work done can never be zero Correct Answer Incorrect Answer
    D SI unit of work is joule Correct Answer Incorrect Answer

    Solution

    Work done can be zero if there is no displacement of the object in the direction of the applied force or if the force is perpendicular to the displacement (e.g., holding a stationary object or circular motion). Hence, option (c) is incorrect.

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