Coupon Accepted Successfully!


Time Period of Satellite

Time period is the time taken by a satellite to go once around the Earth.
Important Points
  • From 47064.png it is clear that time period is independent of the mass of orbiting body and depends on the mass of central body and radius of orbit.
    ⇒ 47051.png i.e., T2 ∝ r3
    This is in accordance with Kepler’s third law of planetary motion, r becomes a semi-major axis if the orbit is elliptic.
  • Time period of nearby satellite:
    From 49402.png
    [as h = 0 and GM = gR2]
    For Earth, R = 6400 km and g = 9.8 m/s2.
     T = 84.6 min ≈ 1.4 h

Test Your Skills Now!
Take a Quiz now
Reviewer Name