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Question:
A geostationary satellite has an orbital period of
A geostationary satellite has an orbital period of
Updated On: Jul 5, 2022
- $2\,hr$
- $12\,hr$
- $6\,hr$
- $24\,hr$
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The Correct Option is D
Solution and Explanation
A geostationary satellite revolves around the earth from west to east with the same angular velocity as the earth. Its period of revolution is one day i.e. $24$ hours.
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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].
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