Unpolarized light is incident on a waveguide made of a denseglass (index of refraction n₂ ) that is coated with alayer of quartz (index of refraction n₃). The waveguideis immersed in a medium with index of refraction n_1.

Assume the wavelength of of the incident light is 500nm, n₁= 1.00, n₂= 1.80 and n₃ =1.45.

A) The speed of light in the dense glass is most nearly [\"2.25\",\"1.875\", \"2.00\", \"1.50\", \"3.00\", \"1.67\"] x 10⁸ m/s

B) The critical angle for total internal reflection off thedense glass / quartz surface is [\"53.7\", \"63.3\", \"47.3\", \"69.0\",\"56.3\"]      

C) For the beam reflecting off the air/dense glass surface to becompletely polarized, θ1 would have to be [\"58.0\", \"63.4\", \"56.3\",\"47.3\", \"60.9\"]      

D) If the beam reflecting off the air/dense glass surface iscompletely polarized, the polarization would be [\"Both parallel andperpendicular to the surface\", \"parallel to the surface\",\"perpendicular to the surface\"]      

E) If the angle of incidence  θ1 = 40 degrees, θ2=[\"20.9\", \"25.4\", \"13.2\", \"22.5\", \"28.6\"] and θ3 = [\"64.6\", \"67.5\",\"69.1\", \"90\", \"61.4\"]      

F) Will the light totally internally reflect and stay in thedense glass or refract into the quartz? [\"It will totally reflect\",\"It will only refract\", \"\", \"It will both reflect and refract\"]