Home
Class 12
PHYSICS
Angular momentum of a rigid body rotatin...

Angular momentum of a rigid body rotating about a fixed Axis with angular velocity `vec omega`

A

is always in the direction of `vec omega`

B

Is always in the direction perpendicular to ` vec omega`

C

May or may not be in the direction of `vec omega`

D

Is always in the direction opposite of `vec omega`

Text Solution

AI Generated Solution

Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

Angular Momentum of a Body Rotating About Fixed Axis of Rotation

Obtain the expression for the angular momentum of a rigid body rotating with a constant angular velocity.

Knowledge Check

  • The angular momentum of a rigid body is

    A
    the moment of the acting force.
    B
    moment of the momentum.
    C
    moment of the mass.
    D
    moment of the acceleration.

  • If I, alpha and tau are the moment of inertia, angular acceleration and torque respectively of a body rotating about an axis with angular velocity omega then,

    A
    `tau = I alpha`
    B
    `tau = I.omega`
    C
    `tau = I//omega`
    D
    `alpha = tau.omega`

  • Assertion: If the head of a right handed screw rotates with the body, the screw advances in the direction of the angular velocty. Reason: For rotation about a fixed axis, the angular velocity vector lies along the axis of rotation.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.

    • Similar Questions

    Explore conceptually related problems

    The relation between the torque tau and angular momentum L of a body of moment of inertia I rotating with angular velocity omega is

    A rigid body rotates about a fixed axis with variable angular velocity equal to alpha-beta , at the time t, where alpha,beta are constant. The angle through which it rotates before its stops

    A rigid body rotates about a fixed axis with variable angular velocity equal to (a - bt) at time t where a and b are constants. The angle through which it rotates before it comes to rest is

    A rigid body rotates about a fixed axis with variable angular velocity equal to (a - bt) at time t where a and b are constants. The angle through which it rotates before it comes to rest is

    A thin circular ring of mass M and radius R is rotating about its axis with constant angular velocity omega . The objects each of mass m are attached gently to the ring. The wheel now rotates with an angular velocity.

    Home
    Profile