Question
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
Answer :
[(rb + R)/(ra + R)]⁰.⁵
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