Page 90 - Sugam Sarita
P. 90
Mula river in rains
Photo Credit: Guarav Bharmbe
Natural light is made up of several different colours associated with
different wavelengths within the light spectrum. The colour we
associate with anything is the range of light waves that are reflected in
our eyes by the molecules that comprise the entity. We don’t see the
colours of light that are absorbed. When it comes to pure water, blue
light is reflected while other colours of light, especially reds, are
absorbed. When looking at the colour of water, it is important to
note the difference between the apparent colour and the true colour
of a body of water. The apparent colour is the colour of the water
when looking at it without removing any suspended and dissolved
particles. The true colour is the colour of the water after the suspended
particles have been removed. Suspended particles are things such as
algae, sediments, or small particles of a mineral. Dissolved particles
are things such as tannins (a yellowish-brown organic acid that is
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