Question

The bluish colour of water in deep sea is due to :

• A. Scattering of light
• B. refraction of light
• C. dispersion of light
• D. reflection of light

Answer 1

Answer:

A. Scattering of light

The bluish color of water in the deep sea is primarily due to the scattering of light, where shorter blue wavelengths scatter more than other colors. It is known as Rayleigh scattering. The ocean looks blue because the long-wavelength lights (red, orange, and yellow) are absorbed more strongly by water molecules than is blue (short-wavelength light). Since blue light is scattered more, it enters our eyes and thus the color of seawater looks blue.