1.

At what height from the surface of the earth, the total energy of satellite is equal to its potential energy at a height `3R` from the surface of the earth (`R`=radius of earth)A. `4R`B. `3R`C. `2R`D. `R`

Answer» Correct Answer - D
`T.E.=P.E., -(GMm)/(2(R+h))=(GMm)/((4R))`


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