Quiz 6 Prism

Look at the diagram given. This is the first prism. What happen if A SECOND inverted prism is placed behind the first prism?

• the various colors pass through it and form brighter spectrum

• the various colors pass through it and form a white light back

• the various colors pass through it and form an opposite spectrum colors

• nothing will happen

Which of the following is example light scattering ?

( There CAN be more than 1 answer)

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• 
• 
• 

Which of the following natural phenomenons occur due to light dispersion.

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• 
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Angle of deviation is

• angle by which incident ray deviates through prism

• angle between incident ray and refracted ray

• angle between incident ray and normal

Angle of deviation does not depend on

• angle of incidence

• angle of prism

• frequency of light

angle of deviation will be maximum for-----colour

• red

• violet

• green

A prism ABC (with BC as base) is placed in different orientations. A narrow beam of white light is incident on the prism as shown in Figure 11.1. In which of the following cases, after dispersion, the third colour from the top corresponds to the colour of the sky? The Human Eye and the Colourful World CHAPTER11 Fig.11.1

• i

• ii

• iii

• iv

A student shines a narrow beam of white light into a prism as shown in the diagram. He sees a spectrum of colours emerging from the prism.  Which three colours does he see at X, at Y and at Z? 

• X: blue, Y:yellow, Z:red
• X: red, Y:blue, Z:yellow
• X: red, Y:yellow, Z:blue
• X: yellow, Y:red, Z:blue

The diagram shows the passage of a ray of light through a triangular glass block. What is the critical angle of light in glass? 

• A
• B
• C
• D

Why is the spectrum of light seperated into its components of colour when white light is directed to a prism?

• The different colours in the white light bend away from the normal line at different angles when entering prism

• The different colours in the white light bend towards the normal line at different angles when entering prism

• The different colours in the white light bend away from the normal at same speed to each other when entering prism

• The different colours in the white light bend towards the normal at same speed to each other when entering prism