(a). The laser light used in cornea surgery to treat corneal disease is the excimer laser, which emits ultraviolet at a wavelength of 193 nm in air. The index of refraction of the cornea is 1.376. What are the wavelength and frequency of the light in the cornea? (b). Light passes from glass to water. At what will total internal reflection occur? (Take the refractive indices of glass and water to be 1.52 and 1.33 respectively)