Assume that the cornea has an anterior radius of curvature R1= 7.8 mm, a posterior radius of curvature R2= 6.3 mm, a thickness t = 0.55 mm, and a refractive index n = 1.376. The refractive index of aqueous is 1.336. The refractive index of air is 1. Calculate the power of the cornea?

Using filters, a physicist has created a beam of light that consists of three wavelengths: 400 nm (violet), 500 nm (green), and 650 nm (red). He aims the beam so that it passes through air and then enters a block of crown glass. The beam enters the glass at an incidence angle of 0, = 43.8°. The glass block has the following indices of refraction for the respective wavelengths in the light beam. wavelength (nm) 400 500 650 index of refraction n 400 nm = 1.53 n 500 nr = 1.52 n650 nm = 1.51 (a) Upon entering the glass, are all three wavelengths refracted equally, or is one bent more than the others? 400 nm light is bent the most 500 nm light is bent the most 650 nm light is bent the most all colors are refracted alike (b) What are the respective angles of refraction (in degrees) for the three wavelengths? (Enter each value to at least two decimal places.) (i) O400 nm (ii) O500 nm (iii) O650 n O nm

A beam falls on a glass wedge of refractive index 1.41 at an angle x = 56.0°. Assuming the angle between the wedge planes is 中, what is the minimum angle $ for the beam to undergo total internal reflection from the second edge of the wedge? Express your answer in degrees. $= AZ ? 쒀 ill

A ray of light travels from air into another medium, making an angle of θ1 = 45.0° with the normal A light ray in air is moving down and to the right and is incident on a second medium. It makes an angle θ1 with the vertical. Inside the vertical, it continues to move down and to the right but at a steeper slope than the incident ray. It makes an angle θ2 with the vertical. (a) Find the angle of refraction θ2 if the second medium is sodium chloride. °(b) Find the angle of refraction θ2 if the second medium is diamond. °(c) Find the angle of refraction θ2 if the second medium is benzene. °