1987 B5

Light of frequency 6.0 x 10¹⁴ hertz strikes a glass/air boundary at an angle of incidence q₁. The ray is partially reflected and partially refracted at the boundary, as shown above. The index of refraction of this glass is 1.6 for light of this frequency.

(a) Determine the value of q₃ if q₁ = 30^o.

(b) Determine the value of q₂ if q₁ = 30^o.

(c) Determine the speed of this light in the glass.

(d) Determine the wavelength of this light in the glass.

(e) What is the largest value of q₁ that will result in a refracted ray?