Question # 1

Through which of the following the light travels the fastest.

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Prism

Water

Air

Vacuum

The pole of spherical mirror is also called.

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Principal axis

Focus

Vertex

Focal leangth

What happens when light hits a shiny or smooth surface.

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It is disappeared

It is refracted

It is absorbed

It is reflected

Speed of light through air is about.

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300000 km/s

250000 km/s

225000 km /s

200000 km /s

Speed of light through glass is about.

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300000 km /s

250000 km/s

225000 km /s

200000 km/s

Image distance for a virtual image is always taken.

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Zero

+2

Positive

Negative

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

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Refraction

Dispersion

Reflection

Diffraction

There are ......... types of reflection

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2

3

4

5

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

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Black

Green

White

Red

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

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