A uniform heavy disc is rotating at cons...

A uniform heavy disc is rotating at constant angular velocity `omega` about a vertical axis through its centre and perpendicular to the plane of the disc. Let L be its angular momentum. A lump of plasticine is dropped vertically on the disc and sticks to it. Which of the following will be constant?

`omega`

`omega` and L both

L only

Neither `omega` nor L

Text Solution

Verified by Experts

The correct Answer is:

L= constant

Topper's Solved these Questions

ROTATIONAL MOTION
ERRORLESS|Exercise NCERT BASED QUESTIONS (Work, Energy and Power)|44 Videos
ROTATIONAL MOTION
ERRORLESS|Exercise NCERT BASED QUESTIONS (Rolling on Inclined Plane)|54 Videos
ROTATIONAL MOTION
ERRORLESS|Exercise NCERT BASED QUESTIONS (Moment of Inertia)|139 Videos
NEWTON'S LAWS OF MOTION
ERRORLESS|Exercise ASSERTION & REASON |18 Videos
SIMPLE HARMONIC MOTION
ERRORLESS|Exercise Assertion & Reason|15 Videos

Similar Questions

Explore conceptually related problems

A heavy disc is rotating with uniform angular velocity omega about its own axis. A piece of wax sticks to it. The angular velocity of the disc will

A disc of mass 4 kg and radius 0.2 m, makes 20 rev/s, about an axis passing through its centre and perpendicular to the plane of the disc. The angular momentum of the disc is approximately equal to

The moment of inertia of a copper disc, rotating about an axis passing through its centre and perpendicular to its plane

Radius of gyration of a uniform circular disc about an axis passing through its centre of gravity and perpendicular to its plane is

A disc of mass m, radius r and carrying charge q, is rotating with angular speed omega about an axis passing through its centre and perpendicular to its plane. Calculate its magnetic moment

A metal disc of radius R rotates with an angular velcoity omega about an axis perpendicular to its plane passing through its centre in a magnetic field B acting perpendicular to the plane of the disc. Calculate the induced emf between the rim and the axis of the disc.

A thin metallic disc is rotating with constant angular velocity about a vertical axis that is perpendicular to its plane and passes through its centre. The rotation causes the free electrons in the disc to redistribute. Assume that there is no external electric or magnetic field. Then

A horizontal disc is rotating about a vertical axis passing through its centre. If an insect moves from centre to rim then the angular momentum of the system

A smoothh disc is rotating with uniform angular speed omega about a fixed vertical axis passing through its centre and normal to its plane as shown. A small block of mass m is gently placed at the periphery of the disc. Then (pickup the correct alternative or alternatives)

ERRORLESS-ROTATIONAL MOTION-NCERT BASED QUESTIONS (Angular Momentum)

If the resultant external torque acting on a body is zero, then angula...
Text Solution
|
A ballet dancer, dancing on a smooth floor is spinning about a vertica...
Text Solution
|
A uniform heavy disc is rotating at constant angular velocity omega ab...
Text Solution
|
The term moment of momentum is called
Text Solution
|
State the principle of conservation of angular momentum.
Text Solution
|
When a man stands on a turn- table stretching with two equal loads in ...
Text Solution
|
When a mass is rotating in a plane about a fixed point, its angular mo...
Text Solution
|
A small mass attached to a string rotates on a frictionless table top ...
Text Solution
|
A mass M moving with a constant velocity parlale to the X-axis. Its an...
Text Solution
|
A round disc of moment of inertia I2 about its axis perpendicular to i...
Text Solution
|
if the earth is treated as a sphere of radius Radn mass M, Its angular...
Text Solution
|
If the earth shrinks such that its mass does not change but radius dec...
Text Solution
|
A particle of mass m is moving in yz-plane with a unifrom velocity v w...
Text Solution
|
A Merry -go-round, made of a ring-like plarfrom of radius R and mass M...
Text Solution
|
A particle of mass m = 5 unit is moving with a uniform speed v = 3 sqr...
Text Solution
|
The angular speed of a body changes from omega1 to omega2 without app...
Text Solution
|
If the radius of the earth contracts to half of its present value with...
Text Solution
|
A cockroach is moving with velocity v in anticlockwise direction on th...
Text Solution
|
A billiard ball of mass m and radius r, when hit in a horizontal direc...
Text Solution
|
A bar of length l carrying a small mass m at one of its ends rotates w...
Text Solution
|