Question

what does the splitting of light into component colours through a prism indicate about the composition of sunlight?

Answer 1

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The Sunlight is actually white in colour, but it's a mixture of seven different coloured lights of different wavelengths, and when sunlight is passed through a prism, it splits into its constituent units forming a spectrum when observed on a screen. And this shows that the Sunlight is composed of seven different coloured lights .

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They are :

• Red ( highest wavelength )
• Orange
• Yellow
• Green
• Blue
• Indigo
• Voilet ( lowest wavelength )

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Answer 2

The splitting of light occurs because of the shape of the prism and the different interactions of the components of the white light with the glass. ... This splits the white light into its component colours before it reemerges from the rain drop so a rainbow is produced.