1.

Two bodies have their moment of inertia I and 2I respectively about their axis of rotation. If their kinetic energies of rotation are equal, their angular momentum will be in the ratio

Answer»

`1:2`
`sqrt(2):1`
`2:1`
`1:sqrt(2)`

Solution :ROTATIONAL K.E. `=1/2 IW^(2)`
`1/2I_(1)omega_(1)^(2) =1/2I_(2)omega_(2)^(2) rArr omega_(2) = omega_(1)/sqrt(2)`
`L_(1)/L_(2) =1/sqrt(2)`


Discussion

No Comment Found

Related InterviewSolutions