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8.5 DISPERSION OF LIGHT

Total questions: 16

Worksheet time: 8mins

Name
Class
Date
1.

These are all colours of the spectrum except for

a)

indigo

b)

purple

c)

blue

d)

green

2.

An example of disperion of light

a)

Rainbow

b)

Shadow

c)

Sky looks bright orange in the evening

d)

Pool seems shallower

3.

Why cant we see a spectrum of colours when white light pass through a glass prism?

a)

phenomenon of scattering of light

b)

phenomenon of reflection of light

c)

phenomenon of dispersion of light

d)

phenomenon of diffraction of light

4.

Why is the red light is at the top and violet light at the bottom of the spectrum?

a)

Violet light has the medium speed so it is refracted the least

b)

Red light has the lowest speed so its refracted the least

c)

Violet light has the highest speed so its refracted the least

d)

Red light has the highest speed so it is refracted the least

5.

How are colours of the rainbow formed?

a)

from the sun hitting the water

b)

from light hitting objects

c)

through diffrent wavelenghts of refracted light

6.

If u see the rainbow but not the sun,the sun should be positioned

a)

infront of you

b)

behind you

c)

on your left side

d)

on your right side

7.

The breaking up of white light into its component .

Based on the statement given, name the process that takes place in the white light.

a)

Dispersion

b)

Reflection

c)

Refraction

d)

Scattering

8.

Why is red light is at the top whileviolet at the bottom of the spectrum?

a)

Violet light has the medium speed so it is refracted the least.

b)

Violet light has the highest speed so it is refracted the least

c)

Red light has the slowest speed so it is refracted the least

d)

Red light has the highest speed so it is refracted the least.

9.

Rainbow is formed due to

a)

Natural dispersion

b)

Sunlight passing through raindrops

c)

Refraction of light

d)

All of the above

10.

A transparent object that bends light into rainbow colors.

a)

prism

b)

mirror

c)

convex lens

d)

concave lens

11.

The dispersion of light is the separation of white light into the spectrum of light, namely red, orange, yellow, green,blue,indigo and violet.

a)

True

b)

False

12.

Violet light is refracted the most by a glass prism as the light travels the ................ through the glass prism.

a)

slowest

b)

fastest

13.

Red light is refracted the least by a glass prism because red light travels the ............ through the glass prism

a)

slowest

b)

fastest

14.

The substance in the sky which is involved in the formation of rainbow

a)

Air particle

b)

Dust

c)

Raindrop

d)

soot

15.

Which of the following is NOT a source of light?

a)

eyes

b)

lit candle

c)

sun

d)

firefly

16.

Light is able to pass through __________________ materials

a)

transparent

b)

shiny

c)

dull

d)

opaque