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InterviewSolution
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Two satellites of earth `S_(1)` and `S_(2)` are moving in the same orbit. The mass of `S_(1)` is four times the mass of `S_(2)`. Which one of the following statements is true?A. The kinetic energies of the two satellites are equalB. The time period of `S_(1)` is four times that of `S_(2)`C. The potential energies of earth and satellite in the two cases are equalD. `S_(1) and S_(2)` are moving with the same speed |
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Answer» Correct Answer - D `K.E.=(GMm)/(2r) implies` Kinetic energies are unequal `T=(2pir^(3//2))/(sqrt(GM))implies`Time period are equal `P.E.=-(GMm)/(r)implies` Potential energies are unequal `v=sqrt((Gm)/(r))implies ` Orbital speeds are equal |
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