Angular Momentum and Conservation of Angular Momentum and its Applications NEET Questions

Physics - Rotational Motion

Angular Momentum and Conservation of Angular Momentum and its Applications MCQ Questions


1.
The angular momentum of a particle of mass m moving with velocity v at a position r from the origin is defined as:
A.
L = r · p
B.
L = r × p
C.
L = m·v·r
D.
L = p/r
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ANSWER :
B. L = r × p
2.
The SI unit of angular momentum is:
A.
kg·m/s
B.
N·m
C.
kg·m²/s
D.
J·s²
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ANSWER :
C. kg·m²/s
3.
The dimensional formula of angular momentum is:
A.
[M L² T⁻¹]
B.
[M L T⁻¹]
C.
[M L² T⁻²]
D.
[M L² T⁻³]
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ANSWER :
A. [M L² T⁻¹]
4.
A solid sphere is rotating freely about its axis of symmetry in free space. The radius of the sphere is increased while keeping its mass the same. Which of the following physical quantities would remain constant for the sphere?

NEET - 2015

A.
Angular velocity
B.
Moment of inertia
C.
Angular momentum
D.
Rotational kinetic energy
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ANSWER :
C. Angular momentum
5.
Angular momentum is the rotational analogue of:
A.
Force
B.
Velocity
C.
Linear momentum
D.
Mass
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ANSWER :
C. Linear momentum
6.
Angular momentum is a:
A.
Scalar quantity
B.
Pseudo-vector (axial vector)
C.
Tensor
D.
Polar vector
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ANSWER :
B. Pseudo-vector (axial vector)