Assume that a material is composed of 3 layers in descending order: air (nair = 1.00), water (nwater = 1.33), and glass (nglass= 1.52). Then, assume that a monochromatic light ray in the air passes through the surface of water with an angle of incidence 0₁ = 40 degrees. A. Find the angle of refraction in glass after it passes completely through the water layer. B. Find how fast is the light ray moving in the glass?

Light incident in a medium with an index of refraction 1.47 encounters a medium with an index of refraction 1.18. Which of the following best describes what can happen? If there isn't total internal reflection, then the light that refracts into the second medium bends away from the normal. There will never be total internal reflection and the light that refracts into the second medium will bend away from the normal. If there isn't total internal reflection, then the light that refracts into the second medium bends towards the normal. There can only be total internal reflection.

A flat sheet of ice (n = 1.309) has a thickness of 2.1 cm. It is on top of a flat sheet of crystalline quartz (n = 1.544) that has a thickness of 1.2 cm. Light strikes the ice perpendicularly and travels through it and then through the quartz. In the time it takes the light to travel through the two sheets, how far (in cm) would it have traveled in a vacuum? Number i Units

A laser beam shines along the surface of a block of transparent material (see figure below). Half of the beam goes straight to a detector, while the other half travels through the block and then hits the detector. The time delay between the arrival of the two light beams at the detector is 6.25 ns. What is the index of refraction of this material?