Test Academy | Two artificial satellites a and b are at a distances ra and rb above the earth’s surface. If the radius of earth is R, then the ratio of their speeds will be [(rb + R)/(ra + R)]⁰.⁵, [(rb + R)/(ra + R)]², (rb/ra)², (rb/ra)⁰.⁵

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Two artificial satellites a and b are at a distances ra and rb above the earth’s surface. If the radius of earth is R, then the ratio of their speeds will be

Options :

[(rb + R)/(ra + R)]⁰.⁵
[(rb + R)/(ra + R)]²
(rb/ra)²
(rb/ra)⁰.⁵

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