# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 304 - 307 of 2320

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## Question number: 304

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MCQ▾

### Question

The wheel of a car is rotating at the rate of 1200 revolutions per minute. On pressing the accelerator for 10 seconds, it starts rotating at 3500 revolutions per minute. The angular acceleration of the wheel is

### Choices

Choice (4)Response

a.

1980 degree/sec 2

b.

1880 degree/sec 2

c.

d.

## Passage

An electric dipole (AB) consisting of two particles of equal and opposite charge and same mass is released in an electric field. In the figure field lines are without considering effect of field of dipole.

## Question number: 305 (1 of 2 Based on Passage) Show Passage

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MCQ▾

### Question

The center of mass of the dipole

### Choices

Choice (4)Response

a.

Has acceleration with positive x component and negative y component

b.

Has no acceleration

c.

Has acceleration with negative x component and positive y component

d.

Has acceleration with positive x and y components

## Question number: 306 (2 of 2 Based on Passage) Show Passage

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MCQ▾

### Question

Angular acceleration of the dipole, immediately after it is released

### Choices

Choice (4)Response

a.

is anticlockwise

b.

Cannot be determined from the given information.

c.

is clockwise

d.

is zero

## Question number: 307

Edit
Assertion-Reason▾

### Assertion (Ꭺ)

The slope of momentum versus time graph! give us the acceleration.

### Reason (Ꭱ)

Force is given by the rate of change on momentum.

### Choices

Choice (4)Response

a.

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

b.

Ꭺ is false but Ꭱ is true

c.

Both Ꭺ and Ꭱ are false

d.

Ꭺ is true but Ꭱ is false

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