3*10^8/2.42
http://hyperphysics.phy-astr.gsu.edu/hbase/geoopt/refr.html
Hey, do you not have a text?
The index of refraction of diamond is 2.42. What would be the speed of a light wave passing through a this medium?
8.1 x 10 ^-9 m/s
1.2 x 10^8 m/s
7.3 x 10^8 m/s
9 x 10^-9 m/s
1 answer