NEET Physics: Questions 2045 - 2049 of 2142

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Question number: 2045

» Rotational Motion » Torque

MCQ▾

Question

A particle of mass m is moving in a plane along a circle of radius r. Its angular momentum about the axis of rotation is L. What is the centripetal force acting on the particle?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 2046

» Rotational Motion » Concepts of Rotational Motion

MCQ▾

Question

A solid cylinder of mass M and radius R rolls without slipping down an inclined plane of length l and height h. What is the speed of its centre of mass when the cylinder reaches its bottom?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 2047

» Rotational Motion » Torque

MCQ▾

Question

The torque of force Equation newton acting at a point is: (Given: position vector of point is Equation meter)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 2048

» Rotational Motion » Moment of Inertia

MCQ▾

Question

The moment of inertia of uniform rectangular plate about an axis passing through its mid-point and parallel to its length l is, (b = breadth of rectangular plate)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 2049

» Rotational Motion » Rotational Kinetic Energy

MCQ▾

Question

The moment of a uniform disc about an axis, perpendicular to the disc, at the centre is Equation (M = mass, R = radius of disc). If the disc is rolling on its edge without slipping on a straight line path, the ratio of rotation kinetic energy to translation one is,

Choices

Choice (4) Response

a.

1

b.

Equation

c.

Equation

d.

Equation

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