Light [CBSE (Central Board of Secondary Education) Class-8 Science]: Questions 1 - 6 of 33

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Question 1

Question MCQ▾

What makes thing visible:

Choices

Choice (4)Response

a.

Only when light reflected by an object enters our eyes

b.

Eyes

c.

In presence of light

d.

In the dark

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Question 2

Question MCQ▾

Reflection of light from a smooth surface is called as:

Choices

Choice (4)Response

a.

Specular reflection

b.

Regular reflection

c.

Diffuse reflection

d.

Both a. and b. are correct

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Question 3

Question MCQ▾

A ray which strikes the reflecting surface is called as:

Choices

Choice (4)Response

a.

Reflected ray

b.

Incident ray

c.

Normal

d.

Question does not provide sufficient data or is vague

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Question 4

Question MCQ▾

Periscope is defined as:

Choices

Choice (4)Response

a.

Right-left reversal of image by a plane mirror

b.

An instrument used to see above obstacles

c.

An arrangement in which beautiful patterns are formed

d.

Question does not provide sufficient data or is vague

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Question 5

Question MCQ▾

A reflected ray is:

Choices

Choice (4)Response

a.

Perpendicular line

b.

Ray strikes the reflecting surface

c.

A light ray which bounces back into same medium after reflection from reflected surface.

d.

None of the above

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Question 6

Question MCQ▾

Laws of reflection are:

Choices

Choice (4)Response

a.

The incident ray, the reflected ray and the normal at the point of incidence all lie in the same plane

b.

The angle of incidence (i) is equal to the angle of reflection (r)

c.

Both a. and b. are correct

d.

None of the above

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