An artificial satellite P circles Earth at a distance of from Earth’s centre and…

PHYSICS · Single correct · CBSE · Physics · Gravitation · Gravitation

Problem

An artificial satellite P circles Earth at a distance of

7000\,\text{km}

from Earth’s centre and completes one revolution in

5800\,\text{s}

. Another satellite Q moves in a circular orbit of radius

14\,000\,\text{km}

. The time period of Q is approximately (a)

1.2\times10^{4}\,\text{s}

(b)

8.2\times10^{3}\,\text{s}

(c)

1.6\times10^{4}\,\text{s}

(d)

2.3\times10^{4}\,\text{s}