Is = 225563909.77m/s
The
speed of light in water is the velocity at which light will move in the water.
Using the relation
N =c/v
N =
real depth/apparent dept
Where n is the refractive index, c is the
speed of light in vacuum = 300000000 m/s, and v is the speed in the water (medium).
We can calculate the speed of light in water
if we know the value n,
But n
=1.33
Therefore
1.33= 3
000 000 00/ v
Therefore
v =300 000 000/1.33 = 225563909.77m/s
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