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प्रश्न
Give a reason, why the violet colour of white light deviated most and red colour of white light deviated least.
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उत्तर
The reason is that the speed of violet light in glass is least while that of red light is most. Since. Refractive index of glass = speed of light in air/speed of light in the glass, so the refractive index of glass (the material of prism) is most for violet light and least for the red light. Hence, the violet light has deviated most and red light is deviated least.
संबंधित प्रश्न
In following figure shows a thin beam of white light from a source S striking on one face of a prism.
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Comment on the statement: ‘When any ray of white light is incident on a glass prism, it simply disperses it into its seven constituent colours.
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