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Four friends went to a picnic. The weather was pleasant. They played various tames and then had snacks. Suddenly, Shyam one of them noticed seven colours in the sky. He said to others, "Wow what a rainbow"? The Ram, one of them, asked him "What is Rainbow"? He then explained to all about its formation. After that everyone in the group thanked him for the knowledge, he had given to them. (i) If you were in the place of Shyam, how you would have explained such a natural phenomenon.(ii) Which device can be used to obtain such a phenomenon. (iii) If Shyam was facing the rainbow, the where was the sun ?(iv) What is the moral value which is shown by Shyam? |
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Answer» (i) Rainbow is formed by the dispersion of Sunlight by the tiny water droplets present in the atmosphere after the rainfall. These water droplets act like a prism. Rays of Sunlight enter the water droplets. At the points of incidence, they refract and disperse, then gets reflected internally and finally gets refracted again at the point of emergence. Thus, the different colors of this spectrum called rainbow to reach the observer's eye. (ii) Prism. (iii) The Sun was behind Shyam. (iv) Knowledge increases by sharing, friendship, love and affection with nature. |
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