Foundation
Physics Foundation
Light
Refraction and parallel slab
Question
Draw a diagram to show how white light can be dispersed into a spectrum by using a glass prism. Mark the various colours of the spectrum.
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Solution
When white light is passed through a glass prism it splits into its spectrum of colours (in order violet, indigo, blue, green, yellow, orange and red) and this process of white light splitting into its constituent colours is termed as dispersion.
Because different color travel with different speed in prism they split while moving in prism.
