Question

The orbit of geo-stationary satellite is circular, the time period of satellite depends on - (i) mass of the satellite (ii) mass of the earth (iii) radius of the orbit (iv) height of the satellite from the surface of earth Which of the following is correct?

• A. (i) only
• B. (i) and (ii)
• C. (i), (ii) and (iii)
• D. (ii), (iii) and (iv)

Answer 1

Answer: (D)

(ii), (iii) and (iv)

Answer 2

Time period of satellite
$T \frac{1}{M^{1 /2}}$ where $M$ is mass of earth
$\propto (R + h)^{3/2}$ where $R$ is radius of the orbit, $h$ is the height of satellite from the earth's surface.