Home
Class 11
PHYSICS
When a disc rotates with uniform angular...

When a disc rotates with uniform angular velocity, which of the following is not true?

A

The sence of rotation remains same

B

The orientation of the axis of rotation remains same

C

The speed of rotation is non-zero and remains same

D

The angular acceleration is non-zero and remains same

Text Solution

Verified by Experts

The correct Answer is:
D

If `omega` = constant, then `alpha=0`.
Promotional Banner

Topper's Solved these Questions

  • SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

    KUMAR PRAKASHAN|Exercise SECTION-D NCERT EXEMPLAR SOLUTIONS (VERY SHORT ANSWER TYPE QUESTIONS)|5 Videos
  • SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

    KUMAR PRAKASHAN|Exercise SECTION-D NCERT EXEMPLAR SOLUTIONS (SHORT ANSWER TYPE QUESTIONS)|4 Videos
  • SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

    KUMAR PRAKASHAN|Exercise SECTION-C OBJECTIVE QUESTIONS (VSQs)|52 Videos
  • QUESTIONS ASKED IN JEE - 2020

    KUMAR PRAKASHAN|Exercise Question|16 Videos
  • THERMAL PROPERTIES OF MATTER

    KUMAR PRAKASHAN|Exercise Question Paper (Section - D) (Answer following in brief :) Each carry 4 marks|1 Videos

Similar Questions

Explore conceptually related problems

A horizontal platform is rotating with uniform angular velocity around the vertical axis passing through its centre. At some instant of time a viscous fluid of mass m is dropped a the centre and is allowed to spread out and finally fall. The angular velocity during this period ...........

The dimensional formula of angular velocity is

An electron is projected with uniform velocity along the axis of a current carrying long solenoid. Which of the following is true ?

When a solute undergoes association in a solution- which of the following statement is true:-

A planet is revolving around the Sun in an elliptical orbit. Its closest distance from the sun is r_(min) . The farthest distance from the sun is r_(max) if the orbital angular velocity of the planet when it is nearest to the Sun omega then the orbital angular velocity at the point when it i at the farthest distanec from the sun is

In the shown figure inside a fixed hollow cylinder with vetical axis a pendulumm is rotating in a conical path with its axis same as that of the cylinder with uniform angular velocity. Radius of culinder is 30cm, length of string is 50cm and mass of bob is 400gm. The bob makes contact with the inner fricitonless wall of the cylinder while moving

The angular velocity of particle of rigid body is not constant.

A uniform metallic spherical shell is suspended form celling. It has two holes A and B at top and bottom respectively. Which of the following is/are true :-

Angular velocity is obtained by object due to torque.

A ring of radius 'r' and mass per unit length 'm' rotates with an angular velocity 'omega' in free space then the tension is :