# Rotational Motion (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 55 - 59 of 125

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## Question number: 55

» Rotational Motion » Radius of Gyration

MCQ▾

### Question

Four particles each of mass m are placed at the corners of a square of side length L The radius of gyration of the system about an axis perpendicular to the square and passing through its center is

### Choices

Choice (4) Response

a.

b.

c.

d.

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## Question number: 56

» Rotational Motion » Values of Moments of Inertia

MCQ▾

### Question

Moment of inertia of a ring of mass M = 3 gm and radius R = 1 cm about an axis passing through its edge and parallel to its natural axis is,

### Choices

Choice (4) Response

a.

10 gm-cm 2

b.

6 gm-cm 2

c.

100 gm-cm 2

d.

1 gm-cm 2

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## Question number: 57

» Rotational Motion » Values of Moments of Inertia

MCQ▾

### Question

A long rod has a mass of 0.10 kg and length of 200 cm. The moment of inertia about an axis passing through the center and perpendicular to the length of rod will be,

### Choices

Choice (4) Response

a.

0.0033 kg-m 2

b.

0.033 kg-m 2

c.

0.0025 kg-m 2

d.

0.025 kg-m 2

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## Question number: 58

» Rotational Motion » Moment of Inertia

MCQ▾

### Question

Three rods each of length L and mass M are placed along X, Y and Z axis in such a way that one end of each of the rod is at the origin. The moment of inertia of this system about Z axis is,

### Choices

Choice (4) Response

a.

b.

c.

d.

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## Question number: 59

» Rotational Motion » Moment of Inertia

MCQ▾

### Question

From a uniform wire, two circular loops are made (i) P of radius r and (ii) Q of radius nr. If the moment of inertia of loop Q about an axis passing through its center and perpendicular to its plane is 27 times that of P about a similar axis, the value of n is (diameter of the wire is very much smaller than r or nr)

### Choices

Choice (4) Response

a.

4

b.

6

c.

2

d.

3

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