Nalin and his four friends were sitting on his roof on a pleasant day. All of them were enjoying Ludo. Suddenly ayush saw seven colours in the sky. He jumped with joy and shouted “Look, there is an indradhanush in the sky”. Then nalin explained all about the rainbow. After that every one clapped for him.

(a) What information is given by Nalin to this friends about a rainbow?

(b) Is it possible to obtain rainbow phenomenon on the earth?

(c) Which term is used for the seven colors of the rainbow?

(d) Which color appears at the top and at the bottom of the rainbow?

(e) Which moral value is shown by Nalin towards his friends?

(a) Rainbow is defined as the natural phenomenon in which due to dispersion of white light, an arch of seven colors is formed.

We see rainbow in the sky only after rainfall due to dispersion of sunlight by the tiny water droplets of rain present in the atmosphere. The water droplets acts like small prisms. The rain drops are refracted, dispersed and reflected internally and then refracted again. Due to these phenomena, we see a rainbow in the sky after rainfall.

(b) Yes, it is possible to obtain rainbow on the Earth because when white light passes through glass prism, it is splatted into seven colors.

(c) The terms used for the seven colors of the rainbow is : VIBGYOR

(d) At the top of the rainbow, the red color appears and at the bottom, violet color appears.

(e) Nalin has good knowledge of science and he shared interesting information about rainbow. Sharing information is the moral value towards his friends.