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प्रश्न
In white light of sun, maximum scattering by the air molecular present in the earth’s atmosphere is for ______.
पर्याय
Red colour
Yellow colour
Green colour
Blue colour
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उत्तर
In white light of the sun, maximum scattering by the air molecular present in the earth’s atmosphere is blue colour.
Explanation:
When the light of a certain frequency falls on that atom or molecule, this atom or molecule responds to the light whenever the size of the atom or molecule is comparable to the wavelength of light. The sizes of nitrogen and oxygen molecules in atmosphere are comparable to the wavelength of blue light. These molecules act as scattering centers for the scattering of blue light. This is also the reason that we see the sky as blue.
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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.
Which effect is illustrated by the observation that when a beam of sunlight enters a dusty room, then its path becomes visible to us.
Why does the sky appear dark (or black) to an astronaut instead of blue?
The blue colour of sky is due to:
(a) refraction of light
(b) dispersion of light
(c) diffraction of light
(d) scattering of light
Explain why, when the sun is overhead at noon, it appears white, but when the same sun is near the horizon at sunset, it appears red.
Explain in brief the reason for the following :
Delayed sunset
Which phenomenon is responsible for making the path of light visible?
Blue litmus is added to two test tubes A and B containing dilute HCl and NaOH. Answer respectively. In which test tube a colour change will be observed? State the colour change and give its reason.
Why is the Tyndall effect shown by colloidal particles?
In the atmosphere which colour of light gets scattered the least?
