NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1623 - 1629 of 2028

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Question number: 1623

» Physics » Force and Pressure

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MCQ▾

Question

If the height of the water surface above the bottom of given vessels is same, then in which of the following vessel, the pressure of the water on the bottom of vessel is greatest?

Four vessels containing water

Four Vessels Containing Water

Choices

Choice (4)Response

a.

Vessel – 2

b.

Same pressure at bottom for all vessels.

c.

Vessel – 3

d.

Vessel – 4

Question number: 1624

» Physics » Sound

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Question

An object is travelling with speed of sound. Therefore, value of its speed is around:

Choices

Choice (4)Response

a.

b.

c.

d.

All a. , b. and c. are correct

Question number: 1625

» Physics » Sound

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Question

Sound cannot propagate through:

Choices

Choice (4)Response

a.

Gas

b.

Solid

c.

Water

d.

Vacuum

Question number: 1626

» Physics » Sound

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MCQ▾

Question

Due to which property (ies), a human can identified the quality of sound produced by a source?

Choices

Choice (4)Response

a.

Loudness

b.

Frequency

c.

Amplitude

d.

All a. , b. and c. are correct

Question number: 1627

» Physics » Sound

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Question

If frequency of a vibrating object is , then its time period is:

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1628

» Physics » Force and Pressure

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MCQ▾

Question

Which of the following force is contact force?

Choices

Choice (4)Response

a.

Magnetic force

b.

Electrostatic force

c.

Friction force

d.

Gravitational force

Question number: 1629

» Physics » Sound

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MCQ▾

Question

The speed of sound in kerosene, aluminum and air can correctly compared as:

Choices

Choice (4)Response

a.

b.

c.

d.

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