With the increase of turbidity, the muddy water appears brown due to the upward radiance peak shift towards:
Red
If the water appears brown or reddish, it means that light in the red and possibly yellow parts of the spectrum is being reflected upwards more strongly than blue or green light. This visual shift corresponds to the upward radiance peak shifting towards the red end of the spectrum because red light is being scattered or reflected more effectively by the sediment particles compared to other colors.
Important Questions from Quality of Water
On which scale the turbidity is measured?
Which of the following represents the approximate overflow rate (litres/hours/m2) for the plain sedimentation tank?
Water borne disease Typhoid fever is caused by
Which of the following units is not used to measure turbidity of water?
A hard water would have hardness (in $\text{mg/L}$):
