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SSC GD 2026 PYQ — Question 25

SSC GD Constable - 5 May 2026 - Shift 2 • General Awareness • Q25

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If the satellite's orbital period is 90 minutes, what is the key force keeping it in orbit?

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Correct answer: A

Explanation

Correct Answer: Gravitational Force of Earth

Explanation:

The gravitational force of the Earth is the primary force that keeps a satellite in its orbit, regardless of whether its orbital period is 90 minutes or any other duration.

The Earth's gravitational pull continuously provides the necessary centripetal force required to bend the satellite's path into a circular or elliptical orbit around the Earth. This prevents the satellite from moving away into space.

Additional Points:

  • Satellites in Low Earth Orbit (LEO) typically have an orbital period of approximately 90–95 minutes.

  • The gravitational force acts toward the centre of the Earth and provides the centripetal force necessary for orbital motion.

Important Questions and Answers:

Question: What provides the necessary centripetal force for a satellite to orbit the Earth?
Answer: The gravitational pull of the Earth.

Question: What is the approximate orbital period of a satellite in Low Earth Orbit (LEO)?
Answer: Around 90–95 minutes.