1 An indication that light is a wave is a that it has dark bands in the diffraction pattern 2 The colors of an oil slick indicate that a light is a wave 3 The index of refraction measures a the speed of light 4 Light waves are a transverse 5 The resolution of a human eye is about 6 Which of the following has the lowest index of refraction 7 As the wavelength of light decreases the frequency a 1 60 degree a air a increases 8 In one millionth of a second light will travel a about 1000 feet covered with a small glass spheres 10 Diamonds sparkle in many colors because a light velocity depends on color 11 Which of the following are retroreflectors 9 A stop sign is bright when you shine the headlamps of your car on it It most likely is 12 Two soap bubbles from the same soap appear different colors They probably have 13 If c is the speed of light in vacuum then the speed of light in glass is approximately a choose all a different thickness a 2 3 c 14 Stealth bombers are undetected by radar in part because a of the absence of corner reflectors 15 Rainbows show different colors because a in water different frequencies have different velocities 16 Which of the following is polarized a blue sky light 17 A fiber can send much more information per second than a wire because a light has a very high frequency 18 Which color of light would give the highest number of bits per second in fiber optics 19 Shannon is famous for having invented or discovered a blue a the bit 20 The human eye has cones that detect a green blue red 21 People squint to see better because squinting a reduces the blur size 22 Old people need reading glasses because their lenses become less flexible 23 Red eye in photographs come from a a light of the flash reflecting off the retina the black of the eye 24 Red eye demonstrates that the eye is a retroreflector a 25 Your eye has a two lenses the lens and the cornea 26 Light is polarized when it bounces off choose all that apply a choose all 27 Sunglasses can help you see a fish underwater because a reflected light is polarized 28 Polaroids are used for 3 D movies because a they give a different image to each eye 29 Stress in plastic can be detected by looking at a polarized light crossed polaroids 30 In the pinhole camera more blurring occurs if a the hole is either very large or very small 31 Holograms depend on the fact that light a is a wave 32 A successful fisherman will throw the spear a below the fish image 33 To make a spy satellite that can read a license plate you would have to 34 The wavelength of visible light is closet to the diameter of a use a larger mirror a a red blood cell 35 The Keck telescope is powerful because a it has a bigger mirror to collect light 36 When we say a man is color blind we usually mean that a he can t distinguish red from green 37 The Keck uses what to focus light a a mirror about a 0 66 foot a polarizers a white 39 Present day 3 D movies make use of which technology 40 A computer screen does not have spots that are colored for objects on the surface is about a 20 feet 42 A major use of fiber optics is for a communication 43 Which of the following has the highest frequency 44 Which of the following has the lowest frequency a gamma rays a AM radio 38 Light in a vacuum goes 1 foot every nanosecond In water in one nanosecond it will go 41 For a good telescope like Hubble in geosynchronous orbit HEO a typical resolution 45 If you double the absolute temperature of an object the wavelength of the emitted light a gets shorter by a factor of 2 46 Which kind of light has the longest wavelength a infrared light 47 Invisible light includes a x rays UV and IR 48 As an object gets hotter and hotter the color of its glow will change from a red to yellow to white to blue 49 Radio waves and x rays have the 50 If you double the absolute temperature the total radiation a same speed a increases by 16 51 Most of the energy of an ordinary tungsten filament lightbulb is emitted in the color 53 A tungsten lightbulb has 100 watts printed on it About much power is actually emitted as 56 Which of the following exposes a person to the kind of radiation that can cause cancer 58 If you sleep under a tree you won t get wet from morning dew That s because the tree 61 The ozone layer is created by and absorbs choose all that are correct 62 A few years ago a certain kind of spray can was banned These were the cans that used a infrared 52 Heat radiation is also called a IR visible light a 16 watts a blue a green 54 Which color star would be the hottest 55 Sunlight is brightest in which color a computer aided tomography CAT scans 57 Because of their warmth humans emit primarily a infrared radiation a emits infrared radiation 59 Dew forms when the ground cools 60 A heat seeking missile actually aims itself toward a by emitting IR a infrared light a CFCs a chlorofluorocarbons CFCs 63 Multisprectral refers to a the many colors in visible light 64 The name NMR has been changed to a MRI 65 Which of the following about the ozone layer is not true a Ozone is the most important greenhouse gas 66 The clouds in thunderstorms rise until they reach 67 The original name for the microwave oven was a the ozone layer a radar range 68 Microwaves use radiation with a wavelength 69 The microwaves in a microwave oven mostly heat a same as radar a water a hydrogen 70 MRI maps the distribution of which element to produce an image 72 Which of the following is best for seeing the calcium in bones 71 UV light choose all that are correct a is also called heat radiation 73 A black light is designed to emit a x ray a UV 74 A positron is a an antielectron 75 Sunburn is usually caused by a UV radiation 76 Which of the following uses antimatter 77 To image the hydrogen in the body use 78 Which is the cause for windburn a PET scan a MRI a solar UV a IR 79 Remote control of a TV is usually done using 80 Pit vipers and mosquitoes can sense a IR radiation 81 Infrared radiation can choose all that apply a help snakes locate prey 82 Cancer is most likely to be caused by a ultraviolet radiation 83 The advertising slogan whiter than white means that the material 84 To make clothes appear …
View Full Document
Unlocking...