NEET Physics: Questions 2034 - 2037 of 2098

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Question number: 2034

» Rotational Motion » Moment of Inertia

MCQ▾

Question

The moment of inertia of a circular ring about an axis passing through its center and normal to its plane is 200 gm ⨯ cm 2. Then moment of inertia about its diameter is,

Choices

Choice (4) Response

a.

400 gm ⨯ cm 2

b.

100 gm ⨯ cm 2

c.

200 gm ⨯ cm 2

d.

300 gm ⨯ cm 2

Question number: 2035

» Rotational Motion » Rotational Kinetic Energy

MCQ▾

Question

A sphere is rolling without slipping on a horizontal plane. The ratio of its rotational kinetic energy and translation kinetic energy is,

Choices

Choice (4) Response

a.

2: 9

b.

2: 3

c.

2: 5

d.

2: 7

Question number: 2036

» Rotational Motion » Moment of Inertia

MCQ▾

Question

From a circular disc of radius R and mass 9 M, a small disc of radius R3 is removed from the disc. The moment of inertia of the remaining disc about an axis perpendicular to the plane of the disc and passing through O is,

A small portion of radius R/3 is removed from thedisc ofradiusR

A Small Portion of Radius R/3 Is Removed From Thedisc ofradiusR

Figure shows that circular disc of radius R and mass 9 M, a small disc of radius R/3 is removed from the disc.

Choices

Choice (4) Response

a.

10MR2

b.

379MR2

c.

409MR2

d.

4MR2

Question number: 2037

» Rotational Motion » Concepts of Rotational Motion

MCQ▾

Question

One solid sphere and a disc of same radius are falling along an inclined plane without slip. One reaches earlier than the other due to,

(1) Different size

(2) Different radius of gyration

(3) Different moment of inertia

(4) Different friction

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

Choices

Choice (4) Response

a.

2 and 4 are correct

b.

1 and 2 are correct

c.

1 and 3 are correct

d.

1, 2 and 3 are correct

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