Question

A satellite’s orbit is fixed at a height of 35,970 km. At this height, the satellite is able to
continuously look at the same part of the Earth even as it moves. Which of these would
be true at this height?

A. Signals from the Earth need not be amplified for transmission
B. The satellite will always be shielded from the Sun by the Earth
C. The orbital period of the satellite would be equal to 24 hours
D. Photographs of the entire Earth can be taken from that height

Answer 1

Answer:

Ans. (a)

Explanation:

signal from the earth need not to be amplified for transmission

Answer 2

C. The orbital period of the satellite would be equal to 24 hours

Explanation:

• The given satellite is geosynchronous satellite in the synchronous orbit of the earth.

• A geosynchronous satellite is a satellite having its period of revolution around the earth equal to the period of rotation of the earth about its axis.

• Its plane of revolution is not the same as that of the earth's plane of rotation.

• It is not necessary that the satellite will amplify the signals coming to it, it depends on the functionality of the satellite.

• Since the satellite has its angular velocity of revolution equal to the angular velocity of rotation of the earth it only faces at one geographic location of the earth.

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TOPIC: geosynchronous satellite

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