F1 Dispersion and Scattering of Light

F1 Dispersion and Scattering of Light

by MAANV LOGAN

​How does a rainbow form?

By the end of this lesson, You will be able to

​8.5.1 communicate about the dispersion of light.

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8.5.2 explain with an example the dispersion of light in daily life

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8.6.1 communicate about the scattering of light

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​8.6.2 explain with an example scattering of light in daily life 

Multiple Choice

What is disperse means?

• spread

• bend

• bounce back

​Dispersion of light

1. White light consists of seven components of colour.

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​2. Each component of colour travels at a different speed in a medium.​

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​3. For example, red light has the highest speed, so red light is refracted the least.

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​4. However, violet light has the lowest speed, so violet light is refracted the most

Multiple Choice

How many components of white light?

• 5

• 6

• 7

• 8

Multiple Choice

The breaking up of white light into its component .

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

• Dispersion

• Reflection

• Refraction

• Scattering

Multiple Choice

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

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

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

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

Multiple Choice

What will happen if a second inverted prism is placed behind the first prism?

• double rainbows form

• a white light forms

• the lights of spectrum will be in reverse

Multiple Choice

This is the example of dispersion of light

• sky looks bright orange in the evening

• shadow

• Pool seems shallower

• rainbow

Scattering of Light​

Multiple Choice

what is scatter mean?

• bounce back

• spread randomly

• bend

Multiple Choice

Why does scattering of light occur?

• Light rays are reflected by atmospheric molecules and scatter in all directions

• Light rays are blocked and refracted to all directions by the clouds or particles in the air

• Light rays are transmitted and refracted in all directions by the clouds or particles in the air

Multiple Select

Here is an example of fine particles in the atmosphere that scatter light.

(More than one answer)

• Dust

• Water droplet

• Leaf

• Gas molecule

Multiple Choice

The light colour that are scattered a lot are ........

• blue

• green

• red

• yellow

Multiple Choice

these are examples of phenomena of scattering of light except

• Sky appears blue at midday

• Sky appears reddish in the evening

• Rainbow after rain