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NEETPhysics-Gravitation

NEET Physics Gravitational Force Assertion Reason Question

Type: Assertion Reason-conceptual-Medium-Class 11

Statement – I: Three masses each of mass m are placed at the vertices of an equilateral triangle ABC of side l as shown in figure. The force acting on a mass 2 m placed at the centroid O of the triangle is zero. Statement – II: If the mass placed at vertex A is doubled, then the force acting on the mass 2m placed at the centroid O is 6Gm²/l².

Question diagram
A

Statement I is false but Statement II is true

B

Statement I is true but Statement II is false

C

Both Statement I and Statement II are true

D

Both Statement I and Statement II are false

Correct Answer

Option C

Detailed Explanation

In an equilateral triangle, the centroid is at an equal distance from all vertices, so the net gravitational force is zero. Doubling the mass at one vertex creates a net force.

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