Answer:
b) 2.26×10^8 m/s
Explanation:
let n be the refractive index , v be the speed of light in water.
then, the refractive index is given by:
n = c/v
v = c/n
= (3×10^8)/(1.33)
= 2.26×10^8 m/s
Therefore, the speed of light in water is moving with a speed of 2.26×10^8 m/s.
