1. Explain why rainbows are seen in the sky after rain showers.
of sunlight by tiny water droplets present in the atmosphere lead to the formation of rainbow.
A rainbow is continually set in a direction to that of the Sun. The water droplets behave like small prisms. They get and the incident sunlight, then internally it gets , and finally, get refracted again when it comes out of the raindrop.
2. What makes the clear sky appear blue in colour?
Blue colour in the white light suffers scattering. Due to this, it is the blue colour which . This is the reason why makes the sky appears blue