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

Options

(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 of the discs at the horizontal level will depend on the inclination of the plane
(d) Both the discs will reach at the same time

Correct Answer:

Both the discs will reach at the same time

Explanation:

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