if the average speed of light in a medium is 2.2x10E8 m/s, what is the medium’s index of refraction?

index=speed/speedlight

oops, the inverse of that.

To find the medium's index of refraction, we can use the equation:

Index of refraction (n) = Speed of light in a vacuum (c) / Speed of light in the medium (v)

Given the average speed of light in the medium is 2.2x10^8 m/s, we need to know the speed of light in a vacuum. The speed of light in a vacuum is a constant, which is approximately 3.0x10^8 m/s.

Now we can substitute the values into the equation:

n = (3.0x10^8 m/s) / (2.2x10^8 m/s)

To simplify, we divide the numerator and denominator by 10^8:

n = (3.0 / 2.2) x (10^8 / 10^8)

Calculating the division gives us:

n = 1.36

Therefore, the medium's index of refraction is approximately 1.36.