JEE Main 2019PhysicsGravitationMediumMCQ

JEE Main 2019Gravitation Question with Solution

JEE Main 2019 (09 Apr Shift 1)

Question

A solid sphere of mass M and radius a is surrounded by a uniform concentric spherical shell of thickness 2a and mass 2M. The gravitational field at distance 3a from the centre will be:

Choose an option

Show full solutionCorrect option: B
Correct answer
BGM3a2

Step-by-step explanation

Gravitational field at point P,
=GM3a2+G2M3a2
=GM9a2+2GM9a2
=GM3a2

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About this question

This is a previous-year question from JEE Main 2019, 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.