Determine the speed of light in water if its absolute refractive index is 1.33.
| January 28, 2021 | education
The absolute refractive index of a medium is the ratio of the speed of light in a vacuum (300,000 km / s) to the speed of light in a medium. Using this ratio, we find the speed of light in water:
n = c / v;
v = c / n = 300,000 / 1.33 = 225,564 km / s.
Answer: v = 225564 km / s.
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