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JEE Main & Advanced Physics Gravitation / गुरुत्वाकर्षण Question Bank Acceleration Due to Gravity

  • question_answer
    Weight of a body of mass m decreases by 1% when it is raised to height h above the earth?s surface. If the body is taken to a depth h in a mine, change in its weight is    [KCET 2003; MP PMT 2003]

    A) 2% decrease

    B)               0.5% decrease

    C)             1% increase

    D)               0.5% increase

    Correct Answer: B

    Solution :

                    For height \[\frac{\Delta g}{g}\times 100%=\frac{2h}{R}=1%;\] For depth \[\frac{\Delta g}{g}\times 100%=\frac{d}{R}=\frac{h}{R}=\frac{1}{2}%=0.5%\]


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