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  • The bluish colour of water in deep sea is due to (a) the presence of algae and other plants found in water (b) reflection of sky in water (c) scattering of light (d) absorption of light by the sea

The bluish colour of water in deep sea is due to
(a) the presence of algae and other plants found in water
(b) reflection of sky in water
(c) scattering of light
(d) absorption of light by the sea

Answers (1)

Ans. (c)
Amount of scattering is inversely proportional to fourth power of wavelength.
Wavelength of blue colour is the lowest so blue colour is scattered the most.
Hence, the bluish colour of water in deep sea is due to scattering of light. The very fine particles in water scatter mainly blue light.
The red, green, orange and yellow having higher wavelengths get absorbed more easily by water than blue because of shorter wavelength.
Therefore option (c) is correct

 

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