In pure rolling fraction of its total en...

In pure rolling fraction of its total energy associated with rotation is `alpha` for a ring and `beta` for a solid sphere . Then
`(1) alpha = 1//2 " " (2) beta = 2//7 " " (3) beta = 2//5 " " (4) alpha = 1//4`

A

1 , 2 and 3 are correct

B

1 and 2 are correct

C

2 and 4 are correct

D

1 and 3 are correct

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