Question 19: This laser light bounces from a mirror, continues through air, n = 1.0, to a piece of glass, n = 1.5, at an angle of 25° from the normal.  What will be the lasers refracted angle inside the glass?

Normal 0 = 60° ng (water) = 1.33, b. ng (glass) = 1.52 Calculate the angle between the refracted ray and the normal

Chapter 25: Problem 7: Consider the situation in the figure - a student diver in a pool and an instructor on the edge, outside the water. Since the indices of refraction of air and water are different, the light rays coming from the diver and the instructor are refracted at the surface, changing their apparent position with respect to each other. The diver sees the instructor at an apparent angle of θa = 26°, measured from the normal to the interface. Randomized Variables θa = 26° a) Find the height of the instructor’s head above the water in meters, noting that you will first have to calculate the angle of incidence (you can take the indices of refraction to be na = 1 for air and nw = 1.33 for water).  b) Find the apparent depth of the diver’s head below water as seen by the instructor in meters, assuming the diver and his image both have the same horizontal distance along the surface of the water.

38. Which of the following statements, regarding the nature of light, is/are true? Statement A: When light travels from one medium into another medium it must slow down. Statement B: When light slows down as it enters into a new medium it must bend. Statement C: When light travels from one medium to another it can both reflect and refract. Statement D: Refraction of light will occur regardless of the angle of incidence. A. Statements A is true. B. Statements B is true. C. Statements C is true. D. Statements D is true.