Question

c. 3.60 m above the floor d. at any of these positions, depending on whether the miror is below or above their eyes. e. none of these. 8. The ray aspect of light is based upon light traveling ir a. at a large, but finite velocity b) in straight lines through uniform media through the center of a thin lens on a path without any deviation. d. d. all of these. e none of these. In air, a glass lens that is thinner at its center than it is at the 9. a diverging lens. c. converging if n>1.52, otherwise it will be diverging. d. diverging ifn > 1.52, otherwise it will be converging. none of these e. 10. In a medium where the index of refraction is 1.4, the speed of light is: 1.4x 10* m/s a. 2.1 x 10 m's c. 3.0 x 10 m/s or c. d. 4.2 x 10 m's e. none of these I1. In air, the path of light is at an angle of s0P away from a perpendicular light path deviates by 21° as it enters the glass, whose index of refraction is: to a boundary with a glass block. The 0.63 1.58 1.66 d. 2.14 to 2.18 e. none of these - 12. For an electromagnetic wave traveling through empty space,the speod of the wave is a.) constant. given by the square root of the product of (E)(B). will vary periodically, being a minimum each time E is a maximum. will vary periodically, being a maximum each time E is a maximum. none of these. c. d. e. 13. Light at the middle of the visible spectrum has frequency of about 54 x 10Hz This will have a wavelength that is about: a. 6.2 x 104 m 5.6 x 107m c. 5.9 x 107m d. 1.8 x 10 m e. none of these 14. The maximum electric field, or E, is 100 V/m in an electromagnetic wave. What is the average intensity of this wave? a. 1.33 x 10 W/m2 b) 1.33 x 10 W/m c. 100 V/m d. 1.35 x 102 W/m2d e. none of these 8. nool odi srade

Answer 1

8 ) inStA utitim media ID Sin29° Gin50 Sino, 5.4x 164 ar.