# Rotational Motion (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 68 - 70 of 125

To view these problems with solutions proceed here and click "Subscribe Now".

## Question number: 68

» Rotational Motion » Moment of Inertia

MCQ▾

### Question

One quarter section is cut from a uniform circular disc of radius R. This section has mass M. It is made to rotate about a line perpendicular to its plane and passing through the centre of the original disc. Its moment of inertia about the axis of rotation is

### Choices

Choice (4) Response

a.

b.

c.

d.

To view these problems with solutions proceed here and click "Subscribe Now".

## Question number: 69

» Rotational Motion » Moment of Inertia

MCQ▾

### Question

The moment of inertia of a thin square plate ABCD of uniform thickness about an axis passing through the centre O and perpendicular to the plane of the plate is

(1)

(2)

(3)

(4)

where I 1, I 2, I 3 are respectively moments of inertia about axes 1,2, 3 and 4 which are in the plane of the plate.

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

### Choices

Choice (4) Response

a.

1,2 and 3 are correct

b.

1 and 3 are correct

c.

1 and 2 are correct

d.

2 and 4 are correct

To view these problems with solutions proceed here and click "Subscribe Now".

## Question number: 70

» Rotational Motion » Values of Moments of Inertia

MCQ▾

### Question

A constant torque of 62.8 N-m is exerted on a pivoted wheel. If angular acceleration of wheel is rad/sec 2, then the moment of inertia of the wheel is

### Choices

Choice (4) Response

a.

3 kg-m 2

b.

3.5 kg-m 2

c.

4 kg-m 2

d.

4.5 kg-m 2

To view these problems with solutions proceed here and click "Subscribe Now".