- Water molecules preferentially absorb light in the red and yellow parts of the spectrum. - As light passes through water, the longer wavelengths are removed by absorption. - This leaves the shorter wavelengths (blue and violet) to penetrate deeper. - These remaining blue and violet wavelengths are then scattered by the water molecules and suspended particles, making the water appear blue to our eyes.
The blue colour of water in the sea is due to:
Asked in OPSC CS Prelims 2019 · Topic: Optics (Prisms and Dispersion)
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Answer: D. Absorption of other colours except blue by water molecules
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