Question

A rainbow in the sky is a result of dispersion of light by the drops of water which act like _______.

Answer 1

1. When white light is incident on any transparent medium like a glass prism, it splits into several coloured rays.
2. This phenomenon is called dispersion of light.
3. After the rain, we usually see a rainbow in the sky because of the dispersion of light.
4. The raindrops act as a prism and when sunlight passes through these raindrops, it splits into its seven colours forming a rainbow.
5. Therefore, a rainbow in the sky is a result of the dispersion of light by the drops of water which act like a prism.