NSO Level 1- Science Olympiad (SOF) Class 10: Questions 546 - 552 of 986

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Question number: 546

» Human Eye and Colourful World

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MCQ▾

Question

A rainbow is produced due to which one of the following phenomena?

Choices

Choice (4) Response

a.

Diffraction of light

b.

Interference of light

c.

Ionization of water droplets

d.

Dispersion of light

Question number: 547

» Carbon and Its Componds

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MCQ▾

Question

Among the various allotropes of carbon, which one is hardest?

Choices

Choice (4) Response

a.

Diamond

b.

Coal

c.

Graphite

d.

Buckminster Fullerene

Question number: 548

» Periodic Classification of Elements

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MCQ▾

Question

Which of the following sets of atomic number belongs to Noble gases?

Choices

Choice (4) Response

a.

18,54,118,86

b.

39,71,103

c.

56,17,37,88

d.

106,73,41,200

Question number: 549

» Human Eye and Colourful World

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MCQ▾

Question

Which of the following is not correct for Presbyopia?

Choices

Choice (4) Response

a.

Weakening of the ciliary muscles

b.

Generally occurs at old age

c.

Only see nearby objects clearly and distinctively

d.

All of the above

Question number: 550

» Reproduction in Organisms

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MCQ▾

Question

When lost body part is regained. This mode of reproduction is called

Choices

Choice (4) Response

a.

Regeneration

b.

Budding

c.

Fragmentation

d.

Sporulation

Question number: 551

» Magnetic Effects of Electric Current

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MCQ▾

Question

No force acts on a current carrying conductor when it is placed

Choices

Choice (4) Response

a.

Perpendicular to the magnetic field

b.

Far away from the magnetic field

c.

Parallel to the magnetic field

d.

Inside a magnetic field

Question number: 552

» Acids, Bases and Salts

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MCQ▾

Question

Following below table:

Table of the example

Table of the example

No.

Acid

Base

Salt

Example

(i)

Strong

Strong

Neutral

(ii)

Strong

Weak

Acidic

(iii)

Strong

Strong

Acidic

Which one not correct?

Choices

Choice (4) Response

a.

Only (i)

b.

Only (ii) and (iii)

c.

Only (iii)

d.

Only (ii) and (ii)