NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1551 - 1555 of 2000

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Question number: 1551

» Physics » Gravitation & Pressure

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MCQ▾

Question

The SI unit of the universal constant of gravitation is:

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1552

» Physics » Sound

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MCQ▾

Question

The speed of a sound wave in air is at temperature of air and speed of same sound wave in air is at temperature of air . If the temperature is more than temperature , then which of the following is correct?

Choices

Choice (4) Response

a.

b.

c.

d.

All of the above

Question number: 1553

» Physics » Gravitation & Pressure

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MCQ▾

Question

If the mass of a heavenly body is half of that of the earth and a radius is twice of that of the earth, then the weight of a block on this heavenly body, which weight on the earth is will be:

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1554

» Biology » Diversity of Living Organisms

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MCQ▾

Question

Which of the following organism have water vascular system?

Choices

Choice (4) Response

a.

Starfish

b.

Mosquito

c.

Earthworm

d.

Leech

Question number: 1555

» Physics » Force & Laws of Motion

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MCQ▾

Question

Three blocks and of masses and respectively are connected by a light inextensible string and they are moved on a smooth horizontal plane. If a force of is applied to the string connected to

Three blocks connected by a light inextensible string

Three Blocks Connected by a Light Inextensible String

In figure three blocks connected by a light inextensible string is shown.

The ratio of and , the tensions in the string is:

Choices

Choice (4) Response

a.

b.

c.

d.

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