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1. [0/1 Points] DETAILS PREVIOUS ANSWERS WAUNIPHYSAV1 33.P.003. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Two light rays, originating from the same point, have an angle of 13.0 between them and reflect off a plane mirror. Determine the angle between the reflected rays. X Have you drawn a figure showing the situation described in the problem? Does your figure include all angles and show which angles are equal to each other? Have you taken advantage of the law of reflection? 2. [-/1 Points] DETAILS WAUNIPHYSAV1 33.P.008. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A light beam reflects off two parallel reflecting surfaces that are { = 146 cm long and separated by a distance of s = 65.0 cm. If the beam of light enters this region as shown, with the angle 0 = 25.0, determine the following. (a) the number of times the light beam reflects off the left surface times (b) the number of times the light beam reflects off the right surface times3. [-/1 Points] WAUNIPHYSAV1 33.P.013. ASK YOUR TEACHER PRACTICE ANOTHER You have enrolled in a scuba diving class and while swimming under water in a nearby lake you look up and note that the Sun appears to be at an angle of 27 from the vertical. At what angle above the horizon does the diving instructor standing on shore see the Sun? :I" 4. [-I1 Points] WAUNIPHYSAV1 33.P.025. ASK YOUR TEACHER PRACTICE ANOTHER Ultrasonic diagnostics may be used to locate a tumor in an organ such as the liver. The gure shows a beam of ultrasonic waves that enter the surrounding medium, refract into the liver, reect off the tumor, and refract back into the surrounding medium. If the speed of the wave as it travels through the liver is 9.0% less than when it is traveling through the surrounding medium, determine the depth of the tumor. :cm Surrounding material 143 cm 5. [-/1 Points] DETAILS WAUNIPHYSAV1 33.P.017. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A cube made of crown glass (n = 1.52) is submerged in water (n = 1.33), as shown in the figure. If a ray of light enters the cube at point A with an angle of incidence in the water of 01 = 58.0, determine the angle of refraction in water for this light as it travels from the glass and into water at point B. Water Glass B6. [-/1 Points] DETAILS WAUNIPHYSAV1 33.P.026. MY NOTES ASK YOUR TEACHER As shown in the figure, a ray of light both reflects and refracts at the air-glass interface. What angle of incidence in air will produce a reflected ray that is perpendicular to the refracted ray? Use n1 = 1 for the index of refraction of air and express your answer in terms of n2 only. 01 = air n2 glass 62 7. [-/1 Points] DETAILS WAUNIPHYSAV1 33.P.028. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Determine the minimum angle of incidence for light traveling in diamond in order to undergo total internal reflection from benzene. The indices of refraction respectively for diamond and benzene are 2.42 and 1.50. 8. [-/1 Points] DETAILS WAUNIPHYSAV1 33.P.030. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A small spotlight mounted in the bottom of a swimming pool that is 5.0 m deep emits light in all directions. On the surface of the pool, directly above the light, the area illuminated is a circle. Determine the maximum radius of this circle. The index of refraction of water is 1.33. m9. [-/1 Points] DETAILS WAUNIPHYSAV1 33.P.034. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Suppose you are using total internal reflection to make an efficient corner reflector, such as the one shown in the figure below. If there is air outside and the incident angle 01 is 53.4, what must be the minimum index of refraction of the material from which the reflector is made? 10. [-/1 Points] DETAILS WAUNIPHYSAV1 33.P.037. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The indices of refraction for orange (610 nm) and green (550 nm) light respectively in crown glass are 1.514 and 1.519. By how much do the critical angles for orange and green light differ in crown glass surrounded by air? 11. [-/1 Points] DETAILS WAUNIPHYSAV1 33.P.045. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER At what angle will light reflected from crown glass (n = 1.520) (to air) be completely polarized