Height of closest orbit of earth is
Correct answer: C. 400 km
- A. 400m
- B. 40 km
- C. 400 km
- D. 36000 km
Explanation
This is the closest to the average height for Low Earth Orbit (LEO).LEO satellites typically range from an altitude of around 160 km to 2000 km.An average value of 400 km falls within this range and represents the most common altitude for LEO satellites.
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About Satellite Motion and Orbital Velocity
Satellite motion uses gravitational force as the centripetal force required for circular orbit, giving relationships among orbital radius, period and orbital velocity. Questions cover geostationary conditions and weightlessness, while distinguishing orbital velocity, escape velocity and the satellite's tangential speed.
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