why cloud sometime appears white ? Explain.
Answers
Answer:
Explanation:
This is more prominent in rain clouds because the cloud droplets are bigger, thus scattering more light, meaning even less light from the sun reaches the bottom of the cloud giving rain clouds their intimidating appearance. Because the tops of clouds have a constant source of white light, they are always white!
In a cloud sunlight is scattered equally meaning that the sunlight continues to remain white and giving clouds their distinctive white appearance.
Why are clouds white?
Clouds are white because light from the sun is white. As light passes through a cloud, it interacts with the water droplets, which are much bigger than the atmospheric particles that exist in the sky.
When sunlight reaches an atmospheric particle in the sky, blue light is scattered away more strongly than other colours, giving the impression that the sky is blue.
But in a cloud, sunlight is scattered by much larger water droplets. These scatter all colours almost equally meaning that the sunlight continues to remain white and so making the clouds appear white against the background of the blue sky.