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JEE Main & Advanced Physics Gravitation / गुरुत्वाकर्षण Question Bank Mock Test - Gravitation and Mechanical Properties of Solid

  • 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, (as shown in the figure) in the gravitational field of a point mass m, 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) \[{{W}_{2}}<{{W}_{1}}<{{W}_{3}}\]

    Correct Answer: B

    Solution :

    [b] As gravitational force is a conservative force, work done is independent of path. \[\therefore {{W}_{1}}={{W}_{2}}={{W}_{3}}\]


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