# Physics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 227 - 233 of 285

Access detailed explanations (illustrated with images and videos) to 2000 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. Unlimited Access & Unlimited Time!

View Sample Explanation or View Features.

Rs. 550.00 -OR-

## Question number: 227

Physics
Edit

### Question

MCQ▾

If a ball is thrown upward with a speed from the top of a building and It reaches the ground with velocity , then the height of the building is,

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 228

Edit

### Question

MCQ▾

If same force acted on two bodies of masses and , they accelerated and , respectively. Then the ratio

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 229

Edit

### Question

MCQ▾

A car is moving with uniform speed. If the external force applied on car is zero, then the car:

### Choices

Choice (4)Response

a.

Must be accelerate

b.

Keep on moving with uniform speed as before

c.

Must stop

d.

None of the above

## Question number: 230

Physics
Edit

### Question

MCQ▾

A gun is away from a man. If he observed the smoke from a gun before he hears the sound of shooting by same gun, then speed of the sound is:

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 231

Edit

### Question

MCQ▾

If momentum of a particle becomes times, then kinetic energy of the particle increases by factor:

### Choices

Choice (4)Response

a.

12

b.

6

c.

3

d.

9

## Passage

A train is moving between A and B. The distance – time graph of journey of train is shown as below.

## Question number: 232 (1 of 3 Based on Passage) Show Passage

Physics
Edit

### Question

MCQ▾

The speed of the train during first is:

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 233 (2 of 3 Based on Passage) Show Passage

Physics
Edit

### Question

MCQ▾

After , the speed of train:

### Choices

Choice (4)Response

a.

Remains same

b.

Increases

c.

Becomes zero

d.

Decrease