Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Gravitation

Question:

Imagine a light planet revolving around a very massive star in a circular orbit of radius R with a period of revolution T. If the gravitational force of attraction between the planet and the star is proportional to R-5/2, then,

Options:

T2 is proportional to R2

T2 is proportional to R7/2

T2 is proportional to R3/2

T2 is proportional to R3.75

Correct Answer:

T2 is proportional to R7/2

Explanation:

mRω2 ∝ R−5/2

⇒ T2 ∝ R7/2