Two solid discs of radii r and 2r roll from the top of an inclined plane without slipping. Then

JEE Main Physics question

Two solid discs of radii and roll from the top of an inclined plane without slipping. Then

(A)The bigger disc will reach the horizontal level first
(B)The smaller disc will reach the horizontal level first
(C)The time difference of reaching the discs at the horizontal level will depend on the inclination of the plane
(D)Both the discs will reach at the same timeCorrect

Answer: (D)

The rolling acceleration for a disc is independent of its radius,

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Question ID VK-159143