A parallel beam of light containing two wavelengths, λ1 = 455 nm and λ2 = 642nm, enters the silicate flint glass of an equilateral prism as shown in Fig.24-59. At what angles, θ1 and θ2 does each beam leave the prism (give angle with normal to the face)?
See Fig. 24-14.

1.7 Silicate flint glass 1.6 Borate flint glass Quartz Silicate crown glass 1.5 Fused quartz 1.4f 400 500 600 700 Wavelength (nm) Violet Blue Green Yellow Orange Red Refractive index 60 45.0 60 60