Question:
A synchronous relay satellite reflects TV signals and transmits TV programme from one part of the world to the other because its
A synchronous relay satellite reflects TV signals and transmits TV programme from one part of the world to the other because its
Updated On: Jul 12, 2022
- period of revolution is greater than the period of rotation of the earth about its axis
- period of revolution is less than the period of rotation of the earth about its axis
- period of revolution is equal to the period of rotation of the earth about its axis
- mass is less than the mass of earth
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The Correct Option is C
Solution and Explanation
The period of revolution of a synchronous relay satellite is equal to the period of rotation of earth about its axis. This makes it possible to reflect TV signals and transmits TV programme from one part of the world to the other.
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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].