Physics: light and refraction?
What distance does light travel in water, glass, and diamond during the time that it travels 1.0 m in vacuum? (t=3.3 ns) The refractive indices for water, glass, and diamond are 1.33, 1.50, and 2.42, respectively.
What distance does light travel in water, glass, and diamond during the time that it travels 1.0 m in vacuum? (t=3.3 ns) The refractive indices for water, glass, and diamond are 1.33, 1.50, and 2.42, respectively.
Fred
Speed of light in medium of refractive index, n, is
v = c/n
Distance, L, that light travels in time, t, is
L = ct
Distance, s, traveled through refractive index, n, in the same time that light in vacuum travels a distance, L, is
s = vt = ct/n = L/n
So just use L = 1 m, and the various n values, and those are your answers!