Consider light passing from air into water. For convenience, the index of refraction for a variety of materials is provided below. Materials at 20C for light with a vacuum wavelength of 589 nm. Material n Material n benzene 1.501 diamond 2.419 Material plexiglas n 1.51 carbon disulfide 1.628 fluorite 1.434 quartz (crystalline) 1.544 carbon tetrachloride 1.461 glass (crown) 1.52 quartz (fused) 1.458 ethanol 1.361 glass (flint) 1.66 sodium chloride 1.544 glycerine .1.473 ice (0C) 1.309 zircon 1.923 water (fresh) 1.333 polystyrene 1.49 air 1.00029 What is the ratio of its wavelength in water to its wavelength in air?