# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 279 - 283 of 2320

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## Question number: 279

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MCQ▾

### Question

A body whose mass 4 kg is acted upon by two forces (8i + 10j) N and (4i + 8j) N. The acceleration produced will be (in m/s 2) -

### Choices

Choice (4)Response

a.

(3i + 2j)

b.

6i + 9j

c.

2i + 3j

d.

1/3 (G + 3)

## Question number: 280

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MCQ▾

### Question

A sphere of radius R has a uniform distribution of electric charge in its volume. At a distance x from its center, for x < R, the electric field is directly proportional to

### Choices

Choice (4)Response

a.

x 2

b.

c.

d.

x

## Question number: 281

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MCQ▾

### Question

A mass of 10 kg is hung to a spring balance in lift. If the lift is moving with an acceleration g/3 in upward & downward directions, choose the correct options related to the reading of the spring balance.

1. 13.3 kg
2. 66.7 kg
3. 32.6 kg
4. 0

Select the correct answers and mark it according to the following

### Choices

Choice (4)Response

a.

1 and 2 are correct

b.

1 and 3 are correct

c.

2 and 4 are correct

d.

1,2 and 3 are correct

## Question number: 282

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MCQ▾

### Question

When the separation between two charges is increased, the electric potential energy of the charges is,

### Choices

Choice (4)Response

a.

decreases

b.

may increase or decrease

c.

Increases

d.

Remains the same

## Question number: 283

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MCQ▾

### Question

A ship is steaming towards east at a speed of 10 ms -1. A woman runs across the deck at a speed of 8 ms -1 in the direction at right angles to the direction of motion of the ship i. e. towards north. What is the velocity of the woman relative to sea?

### Choices

Choice (4)Response

a.

11.64 m/s

b.

12.806 m/s

c.

17 m/s

d.

17.506 m/s

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