MGIMS WARDHA MGIMS WARDHA Solved Paper-2014

  • question_answer
    If\[{{W}_{1}},{{W}_{2}}\]and\[{{W}_{3}}\]represent the work done in moving a particle from A to B along three different paths 1, 2 and 3 respectively in the gravitational field of a point mass m as shown in the figure, find the correct relation between \[{{W}_{1}},{{W}_{2}}\]and\[{{W}_{3}}\].

    A)  \[{{W}_{1}}>{{W}_{2}}>{{W}_{3}}\]       

    B)  \[{{W}_{1}}={{W}_{2}}={{W}_{3}}\]

    C)  \[{{W}_{1}}<{{W}_{2}}<{{W}_{3}}\]       

    D)  \[{{W}_{2}}>{{W}_{2}}>{{W}_{3}}\]

    Correct Answer: B

    Solution :

                    Work done in moving a particle from A to B in gravitational force (conservative force) depends only on its initial and final position and independent of path.


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