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प्रश्न
The clouds are seen white. Explain
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उत्तर
The clouds are nearer the earth surface and they contain dust particles and aggregates of water molecules of sizes bigger than the wavelength of visible light. Therefore, the dust particles and water molecules present in clouds scatter all colours of incident white light from sun to the same extent and hence when the scattered light reaches our eye, the clouds are seen white.
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संबंधित प्रश्न
Explain giving reason why the sky appears blue to an observer from the surface of the earth? What will the colour of the sky be for an astronaut staying in the international space station orbiting the earth? Justify your answer giving reason.
What is the order of colours in a rainbow, from the outside to the inside?
Explain why, the sun can be seen about two minutes before actual sunrise. Draw a diagram to Illustrate your answer.
Explain why, if we look at objects through the hot air over a fire, the objects appear to be moving (or shaking) slightly.
State whether the following statements are true or false:
The scattering away of blue light makes the sun appear red at sunset.
Why are the 'danger signal' lights red in colour?
The sky appears blue because some of the blue component of sunlight is scattered by:
(a) gas molecules present in air
(b) dust particles present in air
(c) water droplets suspended in air
(d) soot particles present in air
What is the colour of the clear sky during day time? Give reason for it.
In the atmosphere which colour of light gets scattered the least?
The clear sky appears blue because:
