Assertion (A) : Two artificial satellites havirig different masses and revolving around the Earth in the same circular orbit have same speed.
Reason (R) : The speed of a satellite is directly proportional to the radius of its orbit.

Options

A. Both A and R are individually true and R is the correct explanation of A
B. Both A and R are individually true but R is not the correct explanation of A
C. A is true but R is false
D. A is false but R is true

Answer

C

Explanation

Orbital velocity is independent of the mass of the orbiting body and is always along the tangent of the orbit i.e., satellite of different masses have same orbital velocity, if they are in the same orbit. For a given planet, `(v prop 1//sqrt(r )).`