Question:
The time period of revolution of geostationary satellite with respect to earth is
The time period of revolution of geostationary satellite with respect to earth is
Updated On: Jul 7, 2022
- 24 hrs
- 1 year
- Infinity
- Zero
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The Correct Option is C
Solution and Explanation
From a non moving frame of reference, the time period of a geostationary satellite is 24 hours. But since, it is the same time for the Earth to complete one rotation, when seen from the earth the geostationary satellites look fixed at a point.
In that way, the time period of a geostationary satellite with respect to earth is infinity.
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Concepts Used:
Gravitation
In mechanics, the universal force of attraction acting between all matter is known as Gravity, also called gravitation, . It is the weakest known force in nature.
Newton’s Law of Gravitation
According to Newton’s law of gravitation, “Every particle in the universe attracts every other particle with a force whose magnitude is,
- F ∝ (M1M2) . . . . (1)
- (F ∝ 1/r2) . . . . (2)
On combining equations (1) and (2) we get,
F ∝ M1M2/r2
F = G × [M1M2]/r2 . . . . (7)
Or, f(r) = GM1M2/r2
The dimension formula of G is [M-1L3T-2].