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JEE Main & Advanced Physics Gravitation / गुरुत्वाकर्षण Question Bank Kepler's Laws of Planetary Motion

  • question_answer
    Two satellite are revolving around the earth with velocities \[{{v}_{1}}\]and \[{{v}_{2}}\] and in radii \[{{r}_{1}}\] and \[{{r}_{2}}({{r}_{1}}>{{r}_{2}})\]respectively. Then [BHU 2005]

    A)             \[{{v}_{1}}={{v}_{2}}\]    

    B)             \[{{v}_{1}}>{{v}_{2}}\]

    C)             \[{{v}_{1}}<{{v}_{2}}\]    

    D)             \[\frac{{{v}_{1}}}{{{r}_{1}}}=\frac{{{v}_{2}}}{{{r}_{2}}}\]

    Correct Answer: C

    Solution :

                    \[v=\sqrt{\frac{GM}{R}}\] if \[{{r}_{1}}>{{r}_{2}}\] then \[{{v}_{1}}<{{v}_{2}}\]


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