A ray of white light traveling through fused quartz is incident al a quartz-air interface at angle θ1. Assume that the index of refraction of quartz is n = 1.456 at the red end of the visible range and n = 1.470 at the blue end. If θ1 is

(a) 42.00°,

(b) 43.10°, and

(c) 44.00°, is the refracted light white, white dominated by the red end of the visible range, or white dominated by the blue end of the visible range, or is there no refracted light?