JEE Main 2022PhysicsGravitationMediumMCQ

JEE Main 2022 — Gravitation Question with Solution

JEE Main 2022 (26 Jul Shift 1)

Question

The percentage decrease in the weight of a rocket, when taken to a height of 32 km above the surface of earth will, be
(Radius of earth =6400 km)

Choose an option

Show full solutionCorrect option: A
Correct answer
A1%

Step-by-step explanation

Acceleration due to gravity at a height h<<R is

g'=g1-2hR

Now, change in g is 

∴Δgg=2hR

Percentage change is 

⇒Δgg×100=2hR×100

=2×326400×100=1%

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About this question

This is a previous-year question from JEE Main 2022, 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.