why sky appears a blue colour
Sanjana111111:
it is because blue colours scatter the most due to atmospheric refraction
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It is due to reflection of water in seas, oceans etc by sunlight that sky appears to be blue in colour. Also most part of earth is covered by water.
and also due to scattering of most blue colour by molecules
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» Sky appears blue due to a phenomenon known as scattering of light,which may be defined as re-emission of light by atoms or molecules in al directions with different frequency when compared to incident frequency.
» An atom will respond to incoming light only when the wavelength is comparable to size of the atom. Majority of the earth's atmosphere is composed of nitrogen and oxygen molecules.
» The atomic size of these molecules matches with the wavelength of violet and blue colour light. So,these colours are scattered more giving a beautiful blue colour to the sky.
» Even though violet colour undergoes !maximum scattering,we see the sky to be blue. Because human eye is more sensitive to blue colour than violet colour light.
Hope it helps
» An atom will respond to incoming light only when the wavelength is comparable to size of the atom. Majority of the earth's atmosphere is composed of nitrogen and oxygen molecules.
» The atomic size of these molecules matches with the wavelength of violet and blue colour light. So,these colours are scattered more giving a beautiful blue colour to the sky.
» Even though violet colour undergoes !maximum scattering,we see the sky to be blue. Because human eye is more sensitive to blue colour than violet colour light.
Hope it helps
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