The diagram below shows a layer of oil that is floating on water in a glass container. A ray of light in the oil is incident at an angle 0 of 44° on the water surface and refracts. Not to light scale ray 44° oil water glass air glass container The refractive indices of the materials are as follows: refractive index of oil = 1.47 refractive index of water 1.33 refractive index of the glass = 1.47 refractive index of air = 1.00 a) Show that the angle of refraction 0 in the diagram is about 50°. b) The oil and the glass have the same refractive index. On the diagram, draw the path of the light ray after it strikes the boundary between the water and the glass and enters the glass. Label the value of the angle of refraction in the glass on the diagram c) A student is surprised that no light comes out of the bottom of the glass container. Explain why no light is transmitted through the glass-air interface and include any mathematical working to justify your explanation. 喜|

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.

Light is incident from air onto the surface of a liquid. The angle of incidence is 47.0°, and the angle of refraction is 36.0°. At what angle of incidence would the reflected light be 100% polarized? Number Incident light Liquid i Reflected light Refracted light Units

A beam of light enters a flint glass semicircular disk with an index of refraction of ng = 1.66 at the midpoint of the flat side as shown in the figure. Determine the angle of incidence in air such that the refracted light will travel through the glass along a normal to the semicircular surface and hit a projection screen with the coordinates x = 5.50 cm and y = 18.1 cm. =___°