Question

Select the correct statement from the following

• A. The orbital velocity of a satellite increases with the radius of the orbit
• B. Escape velocity of a particle from the surface of the earth depends on the speed with which it is fired
• C. The time period of a satellite does not depend on the radius of the orbit
• D. The orbital velocity is inversely proportional to the square root of the radius of the orbit

Answer 1

Answer: (D)

The orbital velocity is inversely proportional to the square root of the radius of the orbit

Answer 2

$v _ { 0 } = \sqrt { \frac { G M } { r } }$