11th Class Physics Work, Energy, Power & Collision / कार्य, ऊर्जा और शक्ति Question Bank 11th CBSE Physics Work, Energy, Power & Collision

  • question_answer
    Does the sun do any work on earth, when earth revolves around the sun in a perfectly circular orbit?

    Answer:

                    No, because angle between gravitational pull and direction of motion at any instant is\[\theta =\text{9}0{}^\circ \].                


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