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Two disc having masses in the ratio 1 : 2 and radii in the ratio 1 : 8 roll down without slipping one by one from ari inclined plane of height h. The ratio of their linear velocities on reaching the ground is

A

`1 : 16`

B

`1 : 128`

C

`1 : 8sqrt(2)`

D

`1 : 1`

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The correct Answer is:
D
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