Suppose you are looking down at the earth from inside a jetliner flying at a cruising altitude of 10,000m. The pupil of your eye has a diameter of 2.0mm, and the average refractive index of the material in the eye is 1.36. Determine how far apart two cars must be on the ground to distinguish between them in (a) red light (wavelength 655nm in a vacuum) and (b) violet light (wavelength 405nm in a vacuum).