# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 2029 - 2032 of 2320

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## Question number: 2029

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MCQ▾

### Question

A flywheel of mass 25 kg has a radius of 0.3 m. What force should be applied tangentially to the rim of the flywheel so that it acquires an angular acceleration of 4 rad s -2?

### Choices

Choice (4)Response

a.

11.2 N

b.

6.8 N

c.

2.6 N

d.

7.5 N

## Question number: 2030

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Assertion-Reason▾

### Assertion (Ꭺ)

If two different axes are at same distance from the centre of mass of a rigid body, then moment of inertia of the given rigid body about both the axes will always be the same.

### Reason (Ꭱ)

From parallel axis theorem, where all terms have usual meaning.

### Choices

Choice (4)Response

a.

Ꭺ is false but Ꭱ is true

b.

Ꭺ is true but Ꭱ is false

c.

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

d.

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

## Question number: 2031

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MCQ▾

### Question

The torque required to stop a wheel of moment of inertia from a speed of 40 rad s -1 in 10 s is,

### Choices

Choice (4)Response

a.

8 ⨯ 10 -3 Nm

b.

8 Nm

c.

0.8 Nm

d.

0.08 Nm

## Question number: 2032

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MCQ▾

### Question

A solid sphere is rolling on a frictionless surface shown in figure with a transnational velocity v m/s. If sphere climbs up to height h then value of v should be

### Choices

Choice (4)Response

a.

2gh

b.

c.

d.

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