NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1299 - 1306 of 2000

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Question number: 1299

» Biology » Diversity of Living Organisms

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MCQ▾

Question

The characteristic feature of phylum porifera is presence of

Choices

Choice (4) Response

a.

Coelenteron

b.

Coelom

c.

Diploblastic

d.

Canal system

Question number: 1300

» Physics » Motion

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MCQ▾

Question

A car has a value of . It may be the –

Choices

Choice (4) Response

a.

Acceleration of the car

b.

Speed of the car

c.

Momentum of the car

d.

Force on the car

Question number: 1301

» Physics » Motion

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MCQ▾

Question

A car increase its speed from to with constant acceleration . So, time taken to change speed is –

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1302

» Physics » Work, Energy & Power

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MCQ▾

Question

If a boy put a book on his head and he is climbing up a ladder, then work done by the boy on the book is:

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1303

» Physics » Work, Energy & Power

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MCQ▾

Question

A force of displaces an object through and does work of in the process. The angle between the force and displacement is:

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1304

» Physics » Sound

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MCQ▾

Question

The sound waves are:

Choices

Choice (4) Response

a.

Transverse waves

b.

Electromagnetic waves

c.

Longitudinal waves

d.

All of the above

Question number: 1305

» Physics » Sound

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MCQ▾

Question

A wave has a value . It may be the:

Choices

Choice (4) Response

a.

Frequency

b.

Time period

c.

Wavelength

d.

Amplitude

Question number: 1306

» Physics » Gravitation & Pressure

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MCQ▾

Question

If the radius of the earth were to be increased by a factor of , by what factor would its density have to be changed to keep the same?

Choices

Choice (4) Response

a.

b.

c.

8

d.

4

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