Rotational Motion (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 121 - 124 of 125

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Question number: 121

» Rotational Motion » Angular Momentum

MCQ▾

Question

An inclined plane makes an angle 30° with the horizontal. A solid sphere rolling down this inclined plane from rest without slipping has a linear acceleration equal to,

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 122

» Rotational Motion » Rotational Kinetic Energy

Appeared in Year: 2016

MCQ▾

Question

Two rotating bodies A and B of masses Equation and Equation with moments of inertia Equation and Equation , have equal kinetic energy of rotation. If Equation and Equation be their angular momenta respectively, then –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 123

» Rotational Motion » Rotational Kinetic Energy

Appeared in Year: 2016

MCQ▾

Question

A solid sphere of mass Equation and radius Equation is rotating about its diameter. A solid cylinder of the same mass and same radius is also rotating about its geometrical axis with an angular speed twice that of the sphere. The ratio of their kinetic energies of rotation Equation will be:

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 124

» Rotational Motion » Torque

Appeared in Year: 2017

MCQ▾

Question

A rope is wound around a hollow cylinder of mass Equation and radius Equation . What is the angular acceleration of the cylinder if the rope is pulled with a force of Equation ?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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