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Question
What do you understand by spectrum? Name the seven prominent colours in order, as obtained in the spectrum of white light.
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Solution
The spectrum is the colour band obtained on a screen when white light passes through a prism. The seven prominent colours obtained in the spectrum of white light, in order are Violet, Indigo, Blue, Green, Yellow, Orange, and Red.
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In the spectrum of white light by a prism, the colour at the extreme end opposite to the base of prism is ______.
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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.
Observe the given figure and write appropriate phenomenon of light in the box.
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- Name the process shown in the figure.
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