# The refractive index of water is 4/3. The speed of light in air is . Then speed of light in water is then ______

## Answers

Answered by

17

**Explanation:**

RI=c/v=4/3

v=3/5*c=(3/4)*3*10^8

2.25*10^8

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Answered by

48

__Given__ :

▪ Refractive index of water = 4/3

▪ Speed of light in air = 3×10m/s

__To Find__ :

▪ Speed of light in water.

__Concept__ :

✒ Refractive index of medium is defined as the ratio of speed of light in air to the speed of light in medium.

✒ Refractive index is an unitless as well as dimensionless quantity.

Mathematically,

__Calculation__ :

___________________________________________________________________________________________________________________

▶ __Milestone-1)__

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