(a) What is spectrum? What is the name of glass shape used to produce a spectrum?
(b) How many colours are there in a full spectrum of white light? Write the various colours of spectrum in the order, starting with red.
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3
Answer:
a.group of waves is called spectrum
b.there are 7 colours in spectrum of white light .they are red,orange,yellow,green,blue,indigo,violet
(VIBGYOR).
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0
Answer:
A band of coloured components of a light beam is called a spectrum .
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