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General Science 8th Class English Medium Chapter 9 Online Test MCQs With Answers

Question # 1

What is the colour of an object that absorb all the light that hits it.

Choose an answer

Black

Green

White

Red

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Question # 2

Image distance for a virtual image is always taken.

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Zero

Positive

Negative

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Question # 3

Angle of incidence is equal to he angle of reflection ,It is first law of.

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Refraction

Dispersion

Reflection

Diffraction

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Question # 4

The image formed by a convex mirror is.

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Real and upright

Real and inverted

Virtual and upright

Virtual and inverted

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Question # 5

How is the angle of incidence related to the angle of reflection.

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It is greater

It is smaller

It is same

None of these

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Question # 6

When light falls on transparent object such as air, water, glass ,etc. It passes through them unchanged, it is called.

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Absorption

Reflection

Transmission

Diffusion

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Question # 7

In a convex mirror, focus is.

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Under the mirror

In front of the mirror

On the mirror

Behind the mirror

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Question # 8

Speed of light is denoted by.

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Question # 9

Which of the following type of mirror can form an image larger than the object.

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Plane

Convex

Concave

All of these

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Question # 10

It takes about.......... minutes for light from the Sun to reach the Earth.

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