InterviewSolution
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InterviewSolution
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If a satellite is moved from one stable circular orbit to a farther stable circular orbit, then the following quantity increasesA. Linear orbital speedB. Gravitational forceC. Centripetal accelerationsD. Gravitational P.E. |
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Answer» Correct Answer - D Orbital speed `v_(c )=sqrt((GM)/(r ))`, Gravitational force `prop (1)/(r^(2))`, c.p. acceleration `=(v^(2))/(r )` All the three decrease as the orbital radius is increased. But the gravitational P.E. `= -(GMm)/(r )`. It is given that `r_(2)gt r_(1)`. Hence the P.E. will increase, because of the -ve sign. |
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