# Rotational Motion (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 60 - 63 of 125

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## Question number: 60

» Rotational Motion » Moment of Inertia

MCQ▾

### Question

Three rings each of mass M and radius R are arranged as shown in the figure. The moment of inertia of the system about YY’ will be,

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 61

» Rotational Motion » Values of Moments of Inertia

MCQ▾

### Question

Five particles of mass 2 kg are attached to the rim of a circular disc of radius 0.1 m & negligible mass. Moment of inertia of this system about an axis passing through the center of the disc & perpendicular to its plane is,

### Choices

Choice (4) Response

a.

0.1 kg-m 2

b.

l kg-m 2

c.

2 kg-m 2

d.

0.2 kg-m 2

## Question number: 62

» Rotational Motion » Moment of Inertia

MCQ▾

### Question

Moment of inertia depends on,

(1) Distribution of particles

(2) Mass

(4) Medium

Select the correct answers and mark it according to the following codes:

### Choices

Choice (4) Response

a.

1 and 3 are correct

b.

1,2 and 3 are correct

c.

2 and 4 are correct

d.

1 and 2 are correct

## Question number: 63

» Rotational Motion » Moment of Inertia

Assertion-Reason▾

### Assertion (Ꭺ)

Radius of gyration of a body is a constant quantity.

### Reason (Ꭱ)

The radius of gyration of a body about an axis of rotation may be defined as the root mean square distance of the particles of the body from the axis of rotation.

### Choices

Choice (4) Response

a.

Ꭺ is false but Ꭱ is true

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are false