JEE Main 2020 — Gravitation Question with Solution
JEE Main 2020 (04 Sep Shift 2)
Question
A body is moving in a low circular orbit about a planet of mass and radius . The radius of the orbit can be taken to be itself. Then the ratio of the speed of this body in the orbit to the escape velocity from the planet is:
Choose an option
Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
The orbital velocity of the body in an orbit of the radius is
The escape velocity from the surface is
Ratio,
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This is a previous-year question from JEE Main 2020, covering the Gravitation chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.