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WorksheetsLight and Optics 8.5
Total questions: 15
Worksheet time: 7mins
How many components of white light are there?
5
6
7
8
Why is the component of colour in a rainbow can be seen when light passes through a glass prism?
phenomena of scattering of light
phenomena of dispersion of light
phenomena of reflection of light
phenomena of diffraction of light
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
Why is red light is at the top whileviolet at the bottom of the spectrum?
Violet light has the medium speed so it is refracted the least.
Violet light has the highest speed so it is refracted the least
Red light has the slowest speed so it is refracted the least
Red light has the highest speed so it is refracted the least.
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 colours pass through it and form brighter spectrum
the various colours pass through it and form a white light back
the various colours pass through it and form an opposite spectrum colours
nothing will happen
This is the example of dispersion of light
sky looks bright orange in the evening
shadow
Pool seems shallower
rainbow
These are all colours of spectrum except
indigo
blue
purple
green
Violet light is refracted the most by a glass prism as the light travels the ................ through the glass prism.
slowest
fastest
Red light is refracted the least by a glass prism because red light travels the ............ through the glass prism
slowest
fastest
What is the full form of VIBGYOR
Violet, Irish grey, blue, green, yellow, black
Violet, Irish grey, blue, black, green, yellow
Violet, Indigo, Black, green, yellow, orange, red
Violet, Indigo, Blue, Green, Yellow, Orange, Red
Apart from a prism, light can also be separated by
rain drop
air
plastics
metal
When a ray of light enters a prism,it bends (a) the normal.
When a ray of light leaves a prism,it bend (a) the normal
