# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 449 - 452 of 2320

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## Question number: 449

Edit
MCQ▾

### Question

A boy standing on a weighing machine observes his weight as 100 N. When he suddenly jumps upwards, his friend notices that the reading increased to 300 N. The acceleration by which the boy jumped will be

### Choices

Choice (4)Response

a.

32.7 m/s 2

b.

19.6 m/s 2

c.

29.4 m/s 2

d.

3.27 m/s 2

## Question number: 450

Edit
MCQ▾

### Question

Two electric charges 12 μC and -6 μ C are placed 20 cm apart in air. If there will be a point P on the line joining these charges and outside the region between them, at which the electric potential is zero, and then the distance of P from - 6μC charge is

### Choices

Choice (4)Response

a.

0.20 m

b.

0.25 m

c.

0.10 m

d.

0.15 m

## Question number: 451

Edit
MCQ▾

### Question

A positive charge is moved from a low potential point A to high potential point B. Then the electric potential energy of the system

### Choices

Choice (4)Response

a.

Nothing definite can be predicted

b.

Decreases

c.

Will remain the same

d.

Increases

## Question number: 452

Edit
Assertion-Reason▾

### Assertion (Ꭺ)

Electric lines of force cross each other.

### Reason (Ꭱ)

Electric field at a point superimpose to give one resultant electric field.

### 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 true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are false

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