# NEET Physics: Questions 281 - 286 of 2142

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## Question number: 281

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.

Remains the same

d.

Increases

## Question number: 282

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.

17 m/s

c.

12.806 m/s

d.

17.506 m/s

## Question number: 283

MCQ▾

### Question

A force of 2 N is applied on a particle for 2 sec, the change in momentum will be -

### Choices

Choice (4) Response

a.

6 Ns

b.

3 Ns

c.

4 Ns

d.

2 Ns

## Question number: 284

MCQ▾

### Question

The acceleration due to gravity at a place can be determined with the help of a simple pendulum. For this purpose effective length of the pendulum is considered. If ′ be the length of the string and ‘d’ the diameter of the bob then the effective length is equal to

### Choices

Choice (4) Response

a.

l + d

b.

c.

l-d

d.

## Passage

Capacitor C 3 in the circuit is variable capacitor (its capacitance can be varied). Graph is plotted between potential differences V, (across capacitor C 1) versus C 3, Electric potential V 1 approaches on asymptote of 10 volts as C 3 → ∞

## Question number: 285 (1 of 3 Based on Passage) Show Passage

MCQ▾

### Question

The ratio of energy stored in capacitor C 1 to that of total energy when C 3 → ∞ is

### Choices

Choice (4) Response

a.

1

b.

Zero

c.

Data insufficient

d.

## Question number: 286 (2 of 3 Based on Passage) Show Passage

MCQ▾

### Question

The ratio of the capacitance C1/C2 will be

### Choices

Choice (4) Response

a.

b.

c.

d.

f Page