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Question
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Solution
The colour band obtained on a screen on passing white light through a prism is called teh spectrum.
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RELATED QUESTIONS
(i) A ray of white light breaks up into its components while passing through a glass prism. Draw a ray diagram to show the path of rays.
(ii) Mark the least deviated colour in your diagram
(iii) Why do different coloured rays deviate differently in a prism?
What happens when a ray of ordinary light is passed through a triangular glass prism?
Define the term dispersion of light.
Explain the cause of dispersion of white light through a prism.
When a white light ray falls on a prism, the ray at its first surface suffers ______.
A wave has wavelength 50Å of State its one use.
The sunlight can be split into its constituent colors using ______.
The phenomena of light involved in the formation of rainbow are ______.
A ray of light is incident at 45° on an equilateral prism in the diagram below.
- Name the phenomenon exhibited by the ray of light when it enters and emerges out of the prism.
- State the cause of the above phenomenon mentioned by you.
Make a rainbow
Try to make your own rainbow. You can try this project in the morning or in the evening. Stand with your back towards the Sun. Take a hosepipe or a water pipe used in the garden. Make a fine spray in front of you. You can see different colours of rainbow in the spray.
