(iv) (a) What do you mean by dispersion of light?
(b) What is a spectrum of light? (c) Name the different colours of light in the proper sequence in the spectrum of white light.
this all are same question (only one is the )
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Answer: (1) The phenomenon of splitting up of white light into its constituent colours is known as dispersion. The various colours in the spectrum of light are in the sequence: Violet, Indigo, Blue, Green, Yellow, Orange and Red. It is commonly pronounced as VIBGYOR.
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(a)dispersion of light:- the process of separation of light into its component colours while passing through a medium is called as dispersion of light.
(b)spectrum of light:-when white light passes through a glass prism, it spreads out into a band of different colours is called the spectrum of light.
(c)the colours in the spectrum of white light are violet,indigo,blue,green,yellow,orange and red
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