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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
Name a natural phenomenon which is caused by the dispersion of sunlight in the sky.
What colours make up white light?
Which colour of the spectrum has
longest wavelength,
How many colours are there in a full spectrum of white light? Write the various colours of spectrum in the order, starting with red.
Name some everyday objects:
which reflect all the colours in sunlight
State whether the following statements are true or false:
The scattering away of blue light makes the sun appear red at sunset.
Why does the sky appear dark (or black) to an astronaut instead of blue?
Draw a neat and labelled diagram of the experimental set up for observing the scattering of light in a colloidal solution of sulphur to show how the sky appears blue, and the sun appears red at sunrise and sunset.
The danger signal is red. Why?
Blue colour of sky is due to the phenomenon of
