Thursday, 25 April 2013

How will you say that white light of the sun is made of seven colours


How will you say that white light of the sun is made of seven colours?    
(Ans) When a ray of white light of the sun is passed through a glass prism, it is dispersed into its seven colour components i.e. violet, indigo, blue, green, yellow, orange and red (VIBGYOR) Different colours of light bend through different angles with respect to the incident ray, as they pass through the prism. Hence, white light is composed of seven colours. The violet colour bends most while the red colour bends the least. 

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