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AIPMT MAINS2012Physics-Gravitation

AIPMT MAINS 2012 Physics Gravitational Field MCQ Question

Type: MCQ-conceptual-Medium-Class 11

Which one of the following plots represents the variation of gravitational field on a particle with distance r due to a thin spherical shell of radius R? (r is measured from the centre of the spherical shell)

A
Option A
B
Option B
C
Option C
D
Option D

Correct Answer

Option B

Detailed Explanation

For a thin spherical shell, the gravitational field outside the shell (r > R) is given by F = GM/r², at the surface (r = R) it is GM/R², and inside the shell (r < R) it is zero. The plot (2) correctly represents this variation.

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