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The Physics of Color

written by: eyez2k1ss
 
What makes the colors of the objects around us? What is the connection between light and colors? How do our eyes perceive colors? How does our brain process them? Check your knowledge of the astonishing physics of colors!

Question 1:


Different colors derive form the different wavelengths of the spectrum of light. What part of it do we call "visible light", i.e. we can perceive with our eyes?
700 - 900 nm
0 - 500 nm
1000 + nm
380 - 740 nm

Question 2:


What is the science of colors called?
Chromatics
Chromatology
Coloritics
Colorology

Question 3:


When a wave of light with a wavelength of approximately 700 nm hits your eyes, it causes sensation of what color?
Red
It will cause no sensation
Green
Black

Question 4:


Which is the color from the visible spectrum produced by waves of the smallest wavelength?
Red
Violet
Green
Yellow

Question 5:


If an object scatters light in all wavelengths, what color does it appear to be?
Invisible
Transparent
White
Black

Question 6:


What objects do we call translucent?
Objects that absorb all wavelengths
Objects that transmit light and scatter it
Objects that transmit light but do not scatter it
Objects that reflect all light specularly (i.e. in the manner of a mirror)

Question 7:


Chemiluminescence is a phenomenon involving which of the following processes?
Transmitting light
Reflecting light
Refracting light
Emitting light

Question 8:


What component of the human eye is responsible for the perception of light of different wavelengths, which results into color vision?
Pupils
Rods
Cones
None of these

Question 9:


It has been calculated that human beings can distinguish this many different colors.
260 000
10 000
256
10 millions

Question 10:


Compared to men, women are much more likely to fall into this group in regards to their color vision.
Color-deficient
Color-blind
Dichromats
Tetrachromats

Question 11:


Synesthesia is a special condition of the brain which is characterized by which of the following unusual events?
Seeing colors when sleeping
Seeing colors when in stress
Seeing colors when listening to music or reading letters/numbers
Seeing colors generated by the brain not based on reality

Question 12:


For a few seconds after exposure to strong light we continue to see the shape of the light source even after we don't look at it any more. What are these fleeting images in our brain called?
Preimages
Afterimages
Printouts
Echoimages

Question 13:


According to the color theory what should red paint look viewed under blue light?
Black
Transparent
White
Purple

Question 14:


Which of the following colors cannot be a pure spectral color?
Purple
Orange
Yellow
Cyan

Question 15:


Which of the following colors is an example of a Tyndall effect color?
The red of the red apple
The blue of the human iris
The color of the human skin
All of these

Question 16:


In most computer monitors which of these colors is not accomplished by simply emitting in the respective wavelength?
Red
Cyan
Orange
Green

Question 17:


What important work connected to color theory did the international group of experts known as the Commission Internationale de l'eclairage (CIE) create in 1931?
Mapped the frequency of basic colors in the spectrum
Defined the primary, secondary, and tertiary colors
Developed a mathematical model of color
Developed the color model of the universe

Question 18:


What two main characteristics measure the properties of light in the human visible range?
Wavelength and frequency
Frequency and intensity
Speed and intensity
Wavelength and speed

Question 19:


Which of the statements about the spectral colors and light sensation in humans is true?
There are more possible color sensations in the human brain than spectral combinations.
There are more possible spectral combinations than color sensations in the human brain.
In order to cause a sensation of a certain color the light should be emitted only in this color.
Spectral light causes equivalent color sensations in most mammal species.

Question 20:


Which species has the most complex color vision system in the animal kingdom?
Fat-tailed dunnart
Mantis shrimp
Pigeons
Honey- and bumblebees

 


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