NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1599 - 1603 of 2000

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Question number: 1599

» Physics » Gravitation & Pressure

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Question

Consider a pressure of a liquid is at depth and density is . Another liquid have pressure at the same depth is and density of this liquid is . If density is more than density , than ratio of pressure is:

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Question number: 1600

» Physics » Motion

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Question

An object covered half of its journey in from the top of a tower, when it is dropped from the top of a tower. Then the height of the tower is:

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1601

» Physics » Force & Laws of Motion

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Question

A bullet of mass moving with a speed strikes a rest wooden block of mass and gets embedded in it. If the speed of the embedded block is , then ratio of the speeds is:

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1602

» Physics » Sound

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MCQ▾

Question

A person standing near the cliff shouted and heard the echo after . If the speed of the sound in air is , how far the person standing from the cliff?

Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

Question number: 1603

» Physics » Sound

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MCQ▾

Question

A particle is moving with the speed more than the speed of sound. That means it is called particle is moving with:

Choices

Choice (4)Response

a.

Supersonic speed

b.

Infrasonic speed

c.

Sonic speed

d.

Ultrasonic speed

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