Two satellites are revolving around the earth in circular orbits of same radii. Mass of one satellite is `100` times that of the other. Then their periods of revolutions are in the ratio

Options

A. `1:1`
B. `10:1`
C. `100:1`
D. `1:100`

Answer

A

Explanation

The period of revolution of a satellite,
` T = (2pi r)/(v_0) = (2pi r)/(sqrt(GM//r))`
which is independent of the mass of the satellite, hence both the satellites have same time period of revolution.