BECAUSE:-
- WE KNOW THAT WATER IS COLOURLRESS. BUT ONCE IT STARTS FALLING FROM A HEIGHT, AS IN A WATERFALL, IT APPEARS WHITE. WHY? THE REASON IS BECAUSE WATER HAS OXYGEN DISSOLVED IN IT, AND WHEN IT FALLS FROM HEIGHT THE DISSOLVED OXYGEN EVAPORATES IN THE FORM OF A GAS. CONSEQUENTLY, MILLION OF SMALL WATER BUBBLES ARE FORMED. THESE LITTLE DROPLETS OF WATER ACT LIKE MILLIONS OF TINY MIRRORS THAT REFLECT LIGHT AT DIFFERENT ANGLES,IN DIFFERENT DIRECTION.
- THIS IS KNOWN AS SCATTERING OF LIGHT. WHEN LIGHT IS SCATTERED, IT BECOMES WHITE IN COLOUR, BECAUSE OF A PHENOMENON KNOWN AS DIFFUSE REFLECTION[Diffuse reflection is the reflection of light from a surface such that an incident ray is reflected at many angles rather than at just one angle as in the case of specular reflection]
- DIFFUSE REFLECTION CAN ALSO BE SEEN WHEN LIGHT STRIKES AN IRREGULAR SURFACE OF A CLEAR SUBSTANCES LIKE GLASS, SUCH AS FROSTED WINDOW, OR THE SURFACE OF A FROSTED WINDOW
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