A girl standing on the edge of a pond observes a fish that is 2 m deep as shown in the figure. If the girl is 1.32 m tall and looks at the fish at a 55 ° angle from the horizontal, how far is the fish from the girl? n air = 1 n water = 4/3 a) 6.93 m b) 1.87 m c) 4.85 m d) 3.44 m

A beam of light enters from air into a slab of glass (nglass=1.5) along a surface tilted at a 45 degree angle from the horizontal. What is the angle?

A jewel thief hides a diamond by placing it on the bottom of a public swimming pool. He places a circular raft on the surface of the water directly above and centered over the diamond, as shown in the figure below. If the surface of the water is calm and the pool is h = 2.36 m deep, find the minimum diameter of the raft that would prevent the diamond from being seen. Raft Diamond

Problem 85. A light ray is incident upon a transparent parallel plate of index of refraction 1.52 at an angle of 40° as shown below. A) Sketch the path of the ray through the plate and exiting the plate. B) Find the angle of refraction in the plate at the entry into the plate. C) Find the angle of refraction in the air at the exit from the plate. Air Plate Air 40 1

An underwater scuba diver sees the Sun at an apparent angle of 31.0° from the vertical. What is actual direction of the Sun? ° (above the horizon)

20

An olive is at the bottom of a glass of alcohol (n = 1.36), 6.00 cm beneath the surface. Above the alcohol is air. To a person in the air, who is directly above the olive, what is the apparent depth d' of the olive. d' = Number i Units