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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?
1000 + nm
700 - 900 nm
0 - 500 nm
380 - 740 nm

Question 2:


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

Question 3:


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

Question 4:


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

Question 5:


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

Question 6:


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

Question 7:


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

Question 8:


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

Question 9:


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

Question 10:


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

Question 11:


Synesthesia is a special condition of the brain which is characterized by which of the following unusual events?
Seeing colors when listening to music or reading letters/numbers
Seeing colors when in stress
Seeing colors when sleeping
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?
Afterimages
Printouts
Preimages
Echoimages

Question 13:


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

Question 14:


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

Question 15:


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

Question 16:


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

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?
Developed the color model of the universe
Defined the primary, secondary, and tertiary colors
Developed a mathematical model of color
Mapped the frequency of basic colors in the spectrum

Question 18:


What two main characteristics measure the properties of light in the human visible range?
Wavelength and frequency
Speed and intensity
Frequency 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 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.
There are more possible color sensations in the human brain than spectral combinations.
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?
Pigeons
Fat-tailed dunnart
Mantis shrimp
Honey- and bumblebees

 


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