Which lens represents the path light takes through a diverging lens? D.

A ray of light strikes a flat glass block at an incidence angle of 8₁ = 39.8°. The glass is 2.00 cm thick and has an index of refraction that equals n = 1.65. 2.00 cm (a) What is the angle of refraction, 82, that describes the light ray after it enters the glass from above? (Enter your answer in degrees to at least 2 decimal places.) (b) with what angle of incidence, 83, does the ray approach the interface at the bottom of the glass? (Enter your answer in degrees to at least 2 decimal places.) (c) with what angle of refraction, 084, does the ray emerge from the bottom of the glass? (Enter your answer in degrees to at least 1 decimal place.)

What is the speed of light in ice? In a chunk of Zircon?

What is the critical angle of incidence of a transparent medium in which light travels with 2.5 x 10^8 m/s ?