NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1692 - 1695 of 2028

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Question 1692

Question MCQ▾

When a light incident on a mirror, there is a perpendicular drawn at the incident point and it is called:

Choices

Choice (4)Response

a.

Incident ray

b.

Image

c.

Reflected ray

d.

Normal

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Question 1693

Question MCQ▾

In two bodies system, when one of the two bodies just tends to move or slip over the surface of another body and there is no actual moment of the system, which type of the friction is acted?

Choices

Choice (4)Response

a.

Static friction

b.

Rolling friction

c.

Kinetic friction

d.

Sliding friction

Edit

Question 1694

Question MCQ▾

Green revolution in India was possible due to:

Choices

Choice (4)Response

a.

Intensive cultivation

b.

Better irrigation, fertilizers and pesticides facilities

c.

Exploitation of high yielding varieties

d.

All a., b. and c. are correct

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Question 1695

Question MCQ▾

The characters which differentiate between the Prokaryotes and Eukaryotes are:

I. Prokaryotes lack nuclear membrane, while genetic material is enclosed in the nucleus in eukaryotes.

II. Ribosomes are present in eukaryotes but absent in prokaryotes.

III. Prokaryotes are unicellular while eukaryotes are multicellular.

IV. Chromosomes of eukaryotes have histones while prokaryotes lack histones.

Which statement (s) is/are correct?

Choices

Choice (4)Response

a.

II and IV

b.

I and II

c.

I and IV

d.

II and III

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