Clouds are white because their water droplets or ice crystals are large enough to scatter the light of the seven wavelengths the component colours of white light (i. e red, orange, yellow, green, blue, indigo, and violet), which combine to produce white light. Clouds are made of water in the air.
So, why cloud looks white class 10?
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.
Why are some clouds whiter than others?
Clouds appears black :. In th atmosphere any object’s colour is dependent on the ability to reflect wavelengths of light. When an object does not reflect any colour, it appears black. Thayswhy tiny droplets of water in rain clouds: Scatter the white light of the sun. Red is scattered first, and violet the last. At high altitude no rays of the sun reach the bottom of the cloud., and more items.
Another answer is some clouds are white and some are “black” due to two chief reasons: 2) viewpoint and/or background (contrast). Concerning optical thickness: it is a technical term that just means that a thicker cloud has more droplets of water for the light to scatter off of.
White clouds are formed as a result of the equal scattering of sunlight in all directions. However, when the scattering of light does not reach all parts of a cloud, especially the base and sides, the cloud appears gray in color. The color gray is often visible in large rainclouds, which have bigger water droplets than typical clouds.
Why are clouds white if the sky is blue?
The blues are scattered and deflected, while the reds reach our eyes down on the ground. As a result, these red wavelengths colour the sky more deeply than the blue ones. The more white clouds there are, the better, as the light is reflected back to be made more intense and the clouds themselves are coloured pink.
The most frequent answer is, the color gray is often visible in large rainclouds, which have bigger water droplets than typical clouds. The top of a rain cloud is still white since its receives adequate white light from the Sun. This is evident when viewing rain clouds from the window of an airplane, as they appear bright white in color.
Why do clouds appear to be at a lower height?
The clouds are at much lower height. They are seen due to scattering of light due to lower parts of earth’s atmosphere, which contains large dust particles, water droplets, ice particles etc. As the size of scatterer is much greater than the wavelength of light, Rayleigh scattering is not valid.
What happens when light is scattered in a cloud?
When light is scattered in a cloud it usually is sent back upwards, or out to the sides of the cloud, making the tops and sides of the cloud whiter than the base which receives less light. This is more prominent in rain clouds because the cloud droplets are bigger, thus scattering more light.
What happens to the space between droplets in a cloud?
As a cloud matures, the dense water droplets may combine to produce larger droplets, which may combine to form droplets large enough to fall as rain. By this process of accumulation, the space between droplets becomes increasingly larger, permitting light to penetrate farther into the cloud.