Question

Give the meaning of the term ‘VIBGYOR’. With which phenomenon is it connected?

Answer 1

Hint: We know that the term ‘VIBGYOR’ is associated with the spectrum of light. We should know that White light is not a single component but is a mixture of seven constituent colours. These seven constituent colours can be separated through refraction by some special natural or manual means.

Complete answer:
The spectrum of seven constituent colours of white light is Called ‘VIBGYOR’. In ‘VIBGYOR’ each letter denotes the first letter of the names of the colours of the spectrum. Where,
‘V’ stands for Violet
‘I’ stands for Indigo
‘B’ stands for Blue
‘G’ stands for Green
‘Y’ stands for Yellow
‘O’ stands for Orange
‘R’ stands for Red.
The term ‘VIBGYOR’ is connected with the phenomenon of refraction and Dispersion of white light.

Additional Information:
As ‘VIBGYOR’ is connected with the phenomenon of dispersion of light, we should know the meaning of dispersion of white light.
Dispersion of white light is defined as the phenomenon of splitting of white light into its seven constituent colours. White light is composed of Violet, Indigo, Blue, Green, Yellow, Orange and Red. One natural example of dispersion of light is rainbow. The dispersion of white light can also be seen in prism. The band of these seven component colours is called Spectrum of light. Dispersion of white light is based on refraction of light as different components of white light bend through different angles at the interface of two different media. Sir Isaac Newton was the first one to notice the phenomenon of dispersion of light using prism. He concluded that white light is made up of seven constituent colours.

Note:
Always, keep in mind that ‘VIBGYOR’ is not a single colour, it denotes the names of constituent colours of white light. Also take care that each letter of ‘VIBGYOR’ denotes the first letter of names of constituent colours. This will help in memorising.