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प्रश्न
The colour of sky, in direction other than of the sun, is blue. Explain.
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उत्तर
As the light travels through the atmosphere, it gets scattered in different directions by the air molecules present in its path. The blue light due to its short wavelength is scattered more as compared to the red light of long wavelength. Thus the light reaching our eye directly from the sun is rich in red colour, while the light reaching our eye from all other directions is the scattered blue light. Therefore, the sky in a direction other than in the direction of the sun is seen blue.
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संबंधित प्रश्न
Which color of white light is scattered the least and why?
Name the scientist who discovered that sunlight consists of seven colours.
Name some everyday objects:
which reflect all the colours in sunlight
Name the phenomenon due to which the stars seem higher in the sky than they actually are.
We can see the sun before the actual sunrise by about:
(a) 5 minutes
(b) 2 minutes
(c) 2 hours
(d) 20 minutes
State whether the following statements are true or false:
The scattering away of red light makes the sky appear blue during the day time.
Sunset is red because at that time the light coming from the sun has to travel:
(a) lesser thickness of earth's atmosphere
(b) greater thickness of earth's atmosphere
(c) varying thickness of earth's atmosphere
(d) along the horizon
At noon the sun appears white as:
The bluish colour of water in deep sea is due to ____________.
How can we explain the reddish appearance of sun at sunrise or sunset? Why does it not appear red at noon?
