Rotational Motion-Moment of Inertia [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 1 - 4 of 79

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Question 1

Question MCQ▾

Two spheres each of mass M and radius are connected with a massless rod of length 2R as shown in the figure.

Two Spheres Connected with Massless Rod

The moment of inertia of the system about an axis passing through the center of one of the spheres and perpendicular to the rod will be

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 2

Question MCQ▾

The density of a rod AB increases linearly from A to B. Its midpoint is O and its centre of mass is at C. Four axes pass through A, B, O and C all perpendicular to the length of the rod. The moments of inertia of the rod about this axis are IA , IB , IO and IC respectively then:

(1) (2)

(3) (4)

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

Choices

Choice (4)Response

a.

1,2 and 3 are correct

b.

2 and 4 are correct

c.

1 and 3 are correct

d.

1 and 2 are correct

Edit

Question 3

Question MCQ▾

Three point masses m1 , m2 , m3 are located at the vertices of an equilateral triangle of length ‘a’ . The moment of inertia of the system about an axis along the altitude of the triangle passing through m1, is

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 4

Question MCQ▾

Two discs of same thickness but of different radii are made of two different materials such that their masses are same. The densities of the materials are in the ratio 1: 3. The ratio of the moments of inertia of these discs about the respective axes passing through their centers and perpendicular to their planes will be in,

Choices

Choice (4)Response

a.

1: 9

b.

3: 1

c.

9: 1

d.

1: 3

Edit