Home
Class 12
PHYSICS
A stationary horizontal disc is free to ...

A stationary horizontal disc is free to rotate about its axis. When a torque is applied on it its, kinetic energy as a function of `theta`, where `theta` is the angle by which it has rotated, is given as `k theta`. If its moment of inertia is I then the angular acceleration of the disc is :

A

`(k)/(4I)theta`

B

`(k)/(I)theta`

C

`(k)/(2I)theta`

D

`(2k)/(I)theta`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • JEE MAINS

    JEE MAINS PREVIOUS YEAR|Exercise Chemistry|1 Videos
  • JEE MAIN 2024 ACTUAL PAPER

    JEE MAINS PREVIOUS YEAR|Exercise Question|522 Videos
  • JEE MAINS 2020

    JEE MAINS PREVIOUS YEAR|Exercise PHYSICS|246 Videos

Similar Questions

Explore conceptually related problems

A stationary horizontal disc is free to rotate about its axis. When a torque is applied on it, its kinetic energy as a function of theta , where theta is the angle by which it has rotated, is given as ktheta^(2) If its moment of inertia is I then the angular acceleration of the disc is

A brass disc is rotating about its axis. If temperature of disc is increased then its

A circular disc is rotating about its own axis, the direction of its angular momentum is

If angular velocity of a disc depends an angle rotated theta as omega=theta^(2)+2theta , then its angular acceleration alpha at theta=1 rad is :

Two equal and opposite forces are allplied tangentially to a uniform disc of mass M and radius R as shown in the figure. If the disc is pivoted at its centre and free to rotate in its plane, the angular acceleration of the disc is :

A body is rotating with angular momentum L. If I is its moment of inertia about the axis of rotation is I, its kinetic energy of rotation is

Moment of inertia of a disc about its own axis is I. Its moment of inertia about a tangential axis in its plane is

If I is the moment of Inertia and E is the kinetic energy of rotation of a body , then its angular momentum is given by

Angular impulse J is applied on a system which can rotate about an axis for which its moment of inertia is I. System is initially at rest.