Question # 1

Speed of light through water is about.

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300000 km/s

250000 km/s

225000 km /s

200000 km/s

Which type of image is formed in Plane Mirror.

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Real

Real and virtual

Virtual

None of these

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

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Black

Green

White

Red

Image distance for a virtual image is always taken.

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Zero

+2

Positive

Negative

Speed of light is denoted by.

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l

s

d

c

Speed of light through glass is about.

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300000 km /s

250000 km/s

225000 km /s

200000 km/s

-------------------- is/are used to coat the backside of the mirror.

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Silver

Copper

Aluminium

Silver and Aluminium

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

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

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