Physics - Gravitation Question with Solution | TestHub

PhysicsGravitationSatellite MotionMedium2 minQB

PhysicsMediummultiple choice

If a satellite orbits as close to the earth's surface as possible :-

Answer:

ABC

Solution:

$v = \frac{GM}{r}$ and $T \propto r^{3/2}$ , so the smallest r gives maximum speed and minimum time period. (A), (B) true.

$E = - \frac{GM m}{2 r}$ : minimum r makes E most negative, i.e. minimum. (C) true, (D) false. Hence (A, B, C).

Stream:JEESubject:PhysicsTopic:GravitationSubtopic:Satellite Motion

⏱ 2mℹ️ Source: QB

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