MHT CET202120 Sep 2021Evening ShiftPhysicsGravitationActual
The orbital velocity of an artificial satellite in a circular orbit just above the earth's surface is ' V '. For the satellite orbiting at an altitude of half the earth's radius, the orbital velocity is
Options
- A3 2 ~V
- B3 2 ~V
- C2 3 ~V
- D2 3 ~V
Correct answer
C. 2 3 ~V
Step-by-step solution
The orbital velocity near the surface of the earth V = GM R At an altitude R 2 , the orbital velocity V^ = GM R + R 2 = 2 GM 3 R = 2 3 ~V