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A rigid body rotates with an angular mom...

A rigid body rotates with an angular momentum L. If its kinetic energy is halved, the angular momentum becomes,

A

L

B

`(L)/(2)`

C

2L

D

`(L)/(sqrt2)`

Text Solution

Verified by Experts

The correct Answer is:
d
The relation between angular momentum and kinetic energy `, L =sqrt(2mE_k)`
If the kinetic energy is halved `(E._K) (E_k)/2`
Angular momentum , `L.=sqrt(2m ((E_k)/2)) = (sqrt(2mE_k))/(sqrt2)= L/sqrt2`
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