One day, Ramesh's friend was performing their respective experiments given by their teacher. While sitting in the practical lab, Ramesh played with his meter scale instead of performing experiments. Suddenly, he held the scale in his hand and started moving in front of the tube light, and then he observed the seven colours of white light. After some time, he got scolded by his lab teacher for not experimenting. What is the phenomenon's name that leads to the formation of a band of seven colours?

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Dispersion

Spectrum

Band of colours

None

answer is A.

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Detailed Solution

The phenomenon that leads to the formation of a band of seven colours is the spectrum.
The distribution of white light into seven colours is known as dispersion, and this band of seven colours is known as the spectrum. The spectrum includes Violet, Indigo, Blue, Green, Yellow, Orange, and Red, often abbreviated as VIBGYOR.

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