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Question
A ray of white light falls on a prism. Draw a ray diagram to show that the prism disperses the white light.
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Solution
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RELATED QUESTIONS
State the cause of dispersion of white light
Make two diagrams to explain refraction and dispersion.
The colour of white light which suffers the maximum bending (or maximum refraction) on passing through a glass prism is:
(a) yellow
(b) orange
(c) red
(d) violet
In figure AO is the ray of white light falling on a prism PQR. Complete the diagram till the light emerges out from the prism and falls on the screen.
When we place a glass prism in the path of a narrow beam of white light a spectrum is obtained. What happens when a second identical prism is placed in an inverted position with respect to the first prism? Draw a labelled ray diagram to illustrate it.
If white light is used in same way what change is expected in the emergent beam?
Answer the following:
What do you mean by dispersion? Name the different colours of light in the proper sequence in the spectrum of light.
In the figure, a beam of light consisting of three colours blue, red, and yellow is incident on a prism and on a rectangular glass block respectively. Complete the diagram by drawings of the refracted and emergent rays.
The periscope is an optical device with a polished surface that reflects the light falling on it.
Observe the given diagram and answer the questions:
- Name the process shown in the figure.
- Name the colour that deviates the most.
- Name the colour that deviates the least.
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- Define ‘spectrum’.
