Quiz 5 Light and Color
A light wave slows down as it travels through the gemstone on a ring. If the light has a wavelength of 5.6x10-7 and a frequency of 3.482x1014 Hz. Calculate the speed of this wave in the gemstone
194, 992,000 m/s
A red spotlight, a blue spotlight, and a green spotlight shine on a white screen. A little kid walks in front of the screen. How many shadows will the little kid have?
7
Two guitarists are tuning their guitar. The first guitarist is playing a frequency of 512 Hz. The second is playing a frequency of 504 Hz. What is the beat frequency that tells them they are out of tune
8
The sun appears orange-red at sunrise because...
Sunlight must travel through a longer distance through the atmosphere before reaching the earth and only the longer wavelengths of light reach our eyes
what are the complementary colors
magenta and green yellow and blue cyan and red
The waves in the electromagnetic spectrum, listed from longest to shortest wavelengths are
radio waves, microwaves, infrared waves, visible light, ultraviolet rays, x-rays, gamma rays
The three primary colors of light are
red, blue, green
A pencil is placed in a beaker of water. The part of the pencil located under water appears to be shifted over and it appears larger. This is due to the _________ of light
refraction
We measured the speed of sound by setting up a standing wave in a vibrating column of air and listening for _____________
resonance
light waves traveling from air into lucite _____________and bend___________ the normal
slow down, toward
Light travels ____________ in more dense media
slower
The color of the rainbow from highest frequency to lowest frequency
violet, indigo, blue, green, yellow, orange, red
During total destruction interference, two waves interact, producing a new wave with _______________ amplitude
zero
During constructive interference, two waves that are in phase, produce a new wave with ______________ amplitude
a larger
The sky appears blue because
blue frequencies of light are refracted and dispersed by air molecules before reaching the surface of the earth
A cyan filter is placed between a magenta spotlight and a white screen, ______________ light is transmitted onto the white screen and ________________ light is absorbed by the filter.
cyan, red
We measured the speed of light using 2d interference pattern caused by the ____________ of light
diffraction
Even on a cold day, a car heats up when sitting in the sun. this is called
greenhouse effect
A red spotlight and a blue spotlight shine on a white screen. A little girl, wearing a white t-shirt, walks in front of the screen. What color will her t-shirt appear?
magenta
