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A planet is revolving round the sun is elliptical orbit. Velocity at perigee position ( nearest) is v_(1) and at apogee position ( farthest)is v_(2). Both these velocities are perpendicularto the line joining centre of sun and planet. r_(1) is the minimum distance and r_(2) the maximum distance. When the planet is at perigee position, it wants to revolve in a circular orbit by itselff. For this, value of G |
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Answer» should increase |
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