MHT CET 2023 Physics question

Physics Gravitation MHT CET 2023

A thin rod of length 'L' is bent in the form of a circle. Its mass is 'M'. What force will act on mass 'm' placed at the center of this circle? (G = constant of gravitation)

(A)zeroCorrect
(B)
(C)
(D)

Answer: (A)

Solution

The rod forms a uniform circular ring of mass with the mass at its centre. Consider any small element of the ring; the diametrically opposite element of equal mass pulls with an equal force in the exactly opposite direction (equal distance from the centre). All such

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Question ID VK-094661