The vitreous humor, a transparent, gelatinous fluid that fills most of the eyeball, has an index of

Question:

The vitreous humor, a transparent, gelatinous fluid that fills most of the eyeball, has an index of refraction of 1.34. Visible light ranges in wavelength from 380 nm (violet) to 750 nm (red), as measured in air. This light travels through the vitreous humor and strikes the rods and cones at the surface of the retina. What are the ranges of

(a) The wavelength,

(b) The frequency,