NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1474 - 1481 of 2000

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Question number: 1474

» Biology » Diversity of Living Organisms

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MCQ▾

Question

Animals with backbone is known as

Choices

Choice (4) Response

a.

Arthropods

b.

Vertebrate

c.

Annelids

d.

Invertebrate

Question number: 1475

» Chemistry » Atoms & Molecules

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MCQ▾

Question

grams of water contains ________ moles

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1476

» Physics » Sound

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MCQ▾

Question

A sound source is having a frequency . Calculate numbers of vibration in a minute.

Choices

Choice (4) Response

a.

14400

b.

40

c.

240

d.

None of the above

Question number: 1477

» Biology » Diversity of Living Organisms

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MCQ▾

Question

The causative agent for malaria is

Choices

Choice (4) Response

a.

Amoeba

b.

Plasmodium

c.

Taenia solium

d.

Ascaris

Question number: 1478

» Physics » Force & Laws of Motion

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MCQ▾

Question

Let force is applied on an object of mass and after increment in its speed, its speed becomes in . Then its initial velocity is:

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1479

» Physics » Sound

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MCQ▾

Question

The speed of sound is maximum in:

Choices

Choice (4) Response

a.

Same for all matters.

b.

Liquid

c.

Gas

d.

Solid

Question number: 1480

» Physics » Sound

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MCQ▾

Question

If a speed of a sound is and its wavelength is , then the sound is:

Choices

Choice (4) Response

a.

Audible

b.

Supersonic

c.

Infrasonic

d.

Ultrasonic

Question number: 1481

» Physics » Sound

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MCQ▾

Question

Ultrasonic wave are used for detecting object under the water. What technique/device is used for this?

Choices

Choice (4) Response

a.

Phacoemulsification.

b.

Ultrasonography

c.

Sound Navigation and Ranging.

d.

Echocardiography

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