Home
Class 12
PHYSICS
A body of mass m and radius of gyration ...

A body of mass m and radius of gyration K has an angular momentum L. Then its angular velocity is

A

`(mK^(2))/(L)`

B

`(L)/(mK^(2))`

C

`mK^(2)K`

D

`(K^(2))/(mL)`

Text Solution

Verified by Experts

The correct Answer is:
B
`L=Iomega=mK^(2)omega" "therefore" "omega=(L)/(mK^(2))`
Promotional Banner

Topper's Solved these Questions

  • ROTATIONAL MOTION

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP - 3|8 Videos

  • OSCILLATIONS

    MARVEL PUBLICATION|Exercise MCQ|368 Videos

  • SEMICONDUCTORS

    MARVEL PUBLICATION|Exercise MCQs|261 Videos

Similar Questions

Explore conceptually related problems

If a body of mass 'm' and radius of gyration K rotates with angular velocity omega , then the angular momentum of the body will be

A body of mass 2 kg and radius of gyration 0.5 m is rotating about an axis. If its angular speed is 2 rad/s, then the angular momentum of the body will be

A particle performing uniform circular motion has angular momentum L . When its angular velocity is doubled and K.E is also doubled, the new angualr momentum becomes x times. What is x ?

a body of mass 10 kg and radius of gyration 0.1 m is rotating about an axis. If angular speed is 10 rad/s, then angular momentum will be:

A particle of mass M and radius of gyration K is rotating with angular acceleration alpha . The torque acting on the particle is

A particle of mass M and radius of gyration K is rotating with angular acceleration alpha . The torque acting on the particle is

A satellite of mass m moving around the earth of mass m_E in a circular orbit of radius R has angular momentum L. The rate of the area swept by the line joining the centre of the earth and satellite is

A body of mass 2 kg is rotating on a circular path of radius 0.5 m, with an angular velocity of 20 rad/s. If the radius of the path is doubled, then the new angular velocity will be