Question

If a satellite is orbiting the earth is very close to its surface, then the orbital velocity mainly depends on

• A. The mass of the satellite
• B. The radius of earth
• C. The orbital radius
• D. The mass of earth

Answer 1

Answer: (B), (C), (D)

The correct options are
B The radius of earth
C The orbital radius
D The mass of earth

When satellite is orbiting close to the surface of earth,
orbital velocity, $v_o=\sqrt{\frac{GM}{R}}$ where $M$ and $R$ are the mass and radius of earth, R is also same as orbital radius as it is very close to the earth