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Indication that light is a wave is that is has dark bands in the diffraction pattern The colors of an oil slick indicated that light is a wave The index of refractoin measures light is wave Light waves are transverse The resolution of a human eye is about 1/60 degree Which of the following has the lowest index of refraction? air As the wavelength of light decreases , the frequency increases In one millionth of a second, light will travel about 1000 feet A piece of glass is shaped like a pyramid is titled at 45 degrees with respect to the horizontal . A beam of light is inside the glass, moving horzizontally. When it emerges from the titled surface of the glass , it will be moving in a direction that is titled downward A stop sign is bright when you shine the headlamps of your car on it. It most likely is covered with small glass spheres Diamonds sparkle in many colors light velocity depends on color Which of the following are retroflectors All Two soap bubbles from the same soap appear to be different colors different thickness If c is the speed of light in vacuum, them the speed of light in glass is approxiamately 2/3c Stealth bombers are undetected by radar in part because of the absence of corner reflectors Rainbows show different colors because in water, different frequencies have different velocities Which of the following is polarized? blue sky light A fiber can send much more information per second than a wire because light has a very high frewuency Which color of light would give the highest number of bits per second in fiber optics blue Shannon is famous for having invented or discovered the bit The human eye has cones that detect green,blue,red People squint to see better because squinting reduced the blur size Old people need reading glasses because their lenses become less flexible Red eye in photographs comes from light of the flash reflecting off the retina (the back of the eye) Your eye has two lenses-the lens and the cornea Light is polarzied when it bounces off water,glass, ir Sunglasses can help you see a fish underwater because relflected light is polarized Polarized are used for 3-D movies because they give a different image to each eye Stress in plastic can be detected by looking at polarized light In the pinhole camera, more blurring occurs if the hole is either very larger or very small Holograms depend on the fact that light is a wave A successful fisherman will throw the spear below the fish image To make a spy satellite that can read a license playe , you would have to use a larger mirror The wavelength of visible light is closest to the diameter of red blood cell The Keck telescope is powerful because it has bigger mirror to collect When we say a man is color blind we usually mean that he can't dishtinguish red from green The Keck uses what to focus light a mirror Light in a vacuum goes 1 foot every nanosecond . In water, in one nanosecond it will go about .66 foot Present-day 3-D movies make use of what technology polarizers A computer screen does not have spots that are colored white For a good telescope in geosynchronous, a typical resolution is about 20 feet A major use of fiber optics is for communication