Physics-Orbital Motion

NEET Physics Orbital Motion MCQ Question

Type: MCQ-conceptual-Medium-Class 11

Which of the following statements about orbital motion are correct?

A

Earth and Mars both move in elliptical orbits around the Sun.

B

The speed of an object in a circular orbit depends on its distance from the central mass.

C

The orbital period of a satellite increases as the radius of its orbit increases.

D

Only natural satellites, like the Moon, follow Kepler's laws of planetary motion.

Correct Answer

Option B

Detailed Explanation

Statement B is correct as the speed of an object in a circular orbit is determined by its distance from the central mass, as indicated by the relationship v = √(GM/R). Statements A and C are not explicitly confirmed in the context provided, and D is incorrect since artificial satellites also follow Kepler's laws.

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