There are _____ components of white light.
Six
Eight
Seven
Three
White light is composed of seven components. These colours are violet, indigo, blue, green, yellow, orange and red.
Write the numerals for the following
(a) Forty six lakh, five thousands, seven hundred and ninety
(b) Fifty three crore, four lakh, three thousand and eight.
When a beam of white light is passed through a prism, it splits to form lights of seven colours. Is it possible to recombine the lights of seven colours to obtain the white light again ? Explain your answer.