Question
Briefly explain that white light is composed of seven colours.
✓
Answer
White light appears colourless, but it is actually a mixture of seven different colours. These seven colours are Violet, Indigo, Blue, Green, Yellow, Orange, and Red, commonly remembered as VIBGYOR.
1.When a beam of white light is passed through a glass prism, it splits into seven colours.
2.This phenomenon is called dispersion of light.
3.The splitting occurs because different colours of light have different wavelengths.
4.Due to different wavelengths, each colour refracts by a different angle inside the prism.
5.Violet light bends the most, while red light bends the least, forming a spectrum.
6.The band of seven colours formed on a screen is called the spectrum of white light.
7.A rainbow is a natural example of dispersion, where sunlight splits into seven colours due to water droplets in the atmosphere.
1.When a beam of white light is passed through a glass prism, it splits into seven colours.
2.This phenomenon is called dispersion of light.
3.The splitting occurs because different colours of light have different wavelengths.
4.Due to different wavelengths, each colour refracts by a different angle inside the prism.
5.Violet light bends the most, while red light bends the least, forming a spectrum.
6.The band of seven colours formed on a screen is called the spectrum of white light.
7.A rainbow is a natural example of dispersion, where sunlight splits into seven colours due to water droplets in the atmosphere.
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