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JEE Main & Advanced Physics Gravitation / गुरुत्वाकर्षण Question Bank Self Evaluation Test - Gravitation

  • question_answer
    The figure shows a planet in elliptical orbit around the sun 5'. Where is the kinetic energy of the planet maximum?  

    A) \[{{P}_{1}}\]

    B) \[{{P}_{2}}\]   

    C) \[{{P}_{3}}\]

    D) \[{{P}_{4}}\]

    Correct Answer: D

    Solution :

    [d] Angular momentum of the planet about S is conserved. So, \[mvr=\]constant. \[v\]is maximum when r is minimum. So, v is maximum at point\[{{P}_{4}}\]. Hence K.E. is maximum at\[{{P}_{4}}\].


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