NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1543 - 1549 of 2000

Access detailed explanations (illustrated with images and videos) to 2000 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Unlimited Access for Unlimited Time!

View Sample Explanation or View Features.

Rs. 550.00 or

How to register?

Question number: 1543

» Physics » Sound

Edit
MCQ▾

Question

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: 1544

» Physics » Work, Energy & Power

Edit
MCQ▾

Question

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.

Distance – time graph of a scooter

Distance – Time Graph of a Scooter

Question number: 1545 (1 of 3 Based on Passage) Show Passage

» Physics » Motion

Edit
MCQ▾

Question

The distance travelled by the train in end of 15 min is:

Choices

Choice (4)Response

a.

b.

c.

d.

Cannot determined

Question number: 1546 (2 of 3 Based on Passage) Show Passage

» Physics » Motion

Edit
MCQ▾

Question

After , the speed of train:

Choices

Choice (4)Response

a.

Remains same

b.

Increases

c.

Becomes zero

d.

Decrease

Question number: 1547 (3 of 3 Based on Passage) Show Passage

» Physics » Motion

Edit
MCQ▾

Question

The speed of the train during first is:

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1548

» Physics » Gravitation & Pressure

Edit
MCQ▾

Question

Two objects are placed apart, then the gravitational force between them is . After some time they are placed apart, then the gravitational force between them is . Find the ratio of these gravitational forces .

Choices

Choice (4)Response

a.

9

b.

c.

d.

3

Question number: 1549

» Physics » Sound

Edit
MCQ▾

Question

A speed of a sound is and its wavelength is . Then sound is:

Choices

Choice (4)Response

a.

Ultrasonic

b.

Infrasonic

c.

Audible

d.

None of the above

Developed by: