In this week's lab we will be examining the phenomenon of refraction-the bending of a light ray as it passes from one medium into another. How the light bends depends on a property called the index of refraction (n), which is determined by the speed of light: c_speed of light in empty space>1 n= = V speed of light in medium c= 3.00 x 108 m/s. (a) Convert the speed of light to miles per second, given that there are 1609 meters in a mile. Calculate how many times around the earth a ray of light could travel in one second, given that the earth's equatorial diameter is 7926 miles