Ibhanan Kulkarni

Use the formula: n=c/v

n is the refractive index, c is the speed of light ini vacuum, and v is the speed of light through the given medium (in this case, water).

c=3x10^8 m/s (given fact)

v=2.25x10^8 (given information in the problem)

Now, plug in the values into the formula and solve.


The answer to this problem is 1.33 (decimal place determined through significant figures)