Light And Color

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| By Denise_nambiar21
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Denise_nambiar21
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Quizzes Created: 5 | Total Attempts: 15,856
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  • 1/20 Questions

    Magenta is the complementary color to green. What two primary colors are used to form magenta?       

    • Red and green
    • Red and blue
    • Green and blue
    • Green and cyan
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About This Quiz

Explore the fundamentals of light and color in this engaging quiz. Dive into how primary colors mix to create white light, the role of pigments in color perception, and the effects of combining different light colors. Perfect for learners interested in physics and visual phenomena.

Light And Color - Quiz

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  • 2. 

    Which of the following is not an additive primary color?    

    • Yellow

    • blue

    • Red

    • Green

    Correct Answer
    A. Yellow
    Explanation
    Yellow is not an additive primary color because it cannot be created by combining any other colors of light. In the additive color model, red, green, and blue are the primary colors, and all other colors can be created by mixing different amounts of these three colors. However, yellow is a subtractive primary color in the subtractive color model, which is used in printing and mixing pigments. In this model, the primary colors are cyan, magenta, and yellow, and all other colors are created by subtracting these three colors from white light.

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  • 3. 

    Which of the following is not a primary subtractive color?         

    • Yellow

    • cyan

    • magenta

    • Blue

    Correct Answer
    A. Blue
    Explanation
    The primary subtractive colors are cyan, magenta, and yellow. These colors are used in printing and mixing paints to create a wide range of colors. Blue, on the other hand, is a primary additive color, along with red and green, which are used in electronic displays and lighting.

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  • 4. 

    When red light and green light shine on the same place on a piece of white paper, the spot appears to be....

    • Yellow

    • Brown.

    • white.

    • black

    Correct Answer
    A. Yellow
    Explanation
    When red light and green light shine on the same place on a piece of white paper, the spot appears to be yellow. This is because red and green are complementary colors, meaning they create yellow when combined. The white paper reflects both the red and green light, resulting in the perception of yellow.

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  • 5. 

    The mixing of primary colors of light to produce   other colors is a(n)__process.  

    • Subtractive

    • Refractive

    • additive

    • Diffractive

    Correct Answer
    A. additive
    Explanation
    The mixing of primary colors of light to produce other colors is an additive process. This is because when primary colors of light (red, green, and blue) are combined, they add together to create new colors. This is different from subtractive mixing, which is used with physical pigments and involves the absorption of certain colors of light. Refractive and diffractive processes are not relevant to the mixing of primary colors of light.

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  • 6. 

    A second prism will change a spectrum back into white light. This shows that __________.    

    • Prisms distort images

    • White light is composed of colors

    • Prisms are transparent

    • Light travels at a constant speed

    Correct Answer
    A. White light is composed of colors
    Explanation
    When white light passes through a prism, it is separated into its component colors, creating a spectrum. The fact that a second prism can change this spectrum back into white light indicates that white light is actually composed of different colors.

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  • 7. 

    Why can a prism break white light up into different colors?  

    • Different colored light has different wavelengths

    • Certain parts of a prism only let certain colors of light pass through

    • The colors are changed by addition.

    • This is an example of color by subtraction

    Correct Answer
    A. Different colored light has different wavelengths
    Explanation
    Different colored light has different wavelengths. When white light passes through a prism, it is refracted or bent at different angles depending on its wavelength. This causes the different colors of light to separate and spread out, creating a spectrum of colors. The shorter wavelengths, such as blue and violet, are bent more than the longer wavelengths, such as red and orange. This dispersion of light is what allows a prism to break white light up into different colors.

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  • 8. 

    Light behaves as __________.  

    • A wave only

    • A particle and a wave

    • neither a particle nor a wave

    • A particle only

    Correct Answer
    A. A particle and a wave
    Explanation
    Light behaves as both a particle and a wave. This is known as the wave-particle duality of light. The behavior of light can be explained using both wave-like properties, such as interference and diffraction, and particle-like properties, such as the photoelectric effect and the emission of discrete energy packets called photons. This duality is a fundamental concept in quantum mechanics.

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  • 9. 

     Blue light, which is bent more than red light in a prism, has __________.    

    • a shorter wavelength

    • A faster speed

    • a longer wavelength

    • A lower frequency

    Correct Answer
    A. a shorter wavelength
    Explanation
    Blue light, being bent more than red light in a prism, indicates that it has a shorter wavelength. This is because the bending of light in a prism is directly related to its wavelength. Shorter wavelengths are bent more than longer wavelengths when passing through a prism. Therefore, blue light, which is bent more than red light, must have a shorter wavelength.

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  • 10. 

    What determines the color of light?

    • Wavelength

    • Frequency

    • Amplitude

    • Surface

    Correct Answer
    A. Wavelength
    Explanation
    The color of light is determined by its wavelength. Wavelength refers to the distance between two consecutive peaks or troughs of a wave. Different wavelengths of light correspond to different colors in the visible spectrum. For example, light with a longer wavelength appears red, while light with a shorter wavelength appears violet. Frequency and amplitude are also properties of light waves, but they do not directly determine the color of light.

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  • 11. 

    What color of light is produced when a primary color is combined with its complementary color?

    • Depends on the ratio of the combination

    • Black

    • Subdued version of the primary color

    • White

    Correct Answer
    A. White
    Explanation
    When a primary color is combined with its complementary color, the colors mix together to create white light. This is because the complementary color is the exact opposite of the primary color on the color wheel, and when they are combined, they cancel each other out, resulting in white light.

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  • 12. 

    Which color combination is incorrect?

    • Blue + green = cyan

    • Blue + yellow = white

    • Red + yellow = magenta

    • Red + green = yellow

    Correct Answer
    A. Red + yellow = magenta
    Explanation
    The given color combination of red + yellow = magenta is incorrect. When red and yellow are combined, the resulting color should be orange, not magenta. Magenta is created by combining red and blue.

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  • 13. 

    Which of these properties of light is a constant?

    • Wavelength

    • frequency

    • Speed in a vacuum

    • Amplitude

    Correct Answer
    A. Speed in a vacuum
    Explanation
    The speed of light in a vacuum is a constant because it is always the same value regardless of the wavelength or frequency of the light. This constant speed is approximately 299,792,458 meters per second.

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  • 14. 

    In what way do pigments act differently from light?

    • They produce different colors..

    • They reflect their color and absorb all the others.

    • They cannot be seen..

    • They produce only cyan, yellow, and magenta

    Correct Answer
    A. They reflect their color and absorb all the others.
    Explanation
    Pigments act differently from light by reflecting their own color and absorbing all other colors. This means that when light hits a pigment, it selectively absorbs certain wavelengths of light and reflects the remaining wavelengths, resulting in the perception of a specific color. This is why different pigments appear to have different colors, as they reflect different wavelengths of light.

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  • 15. 

    Pigments rely on colors of light that are...       

    • Added.

    • subtracted

    • Reflected.

    • Refracted.

    Correct Answer
    A. subtracted
    Explanation
    Pigments rely on colors of light that are subtracted. This means that pigments absorb certain colors of light and reflect or transmit the remaining colors. The colors that are absorbed are subtracted from the white light, resulting in the perceived color of the pigment.

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  • 16. 

    To make red light white, add __________.  

    • Magenta light

    • Green light

    • Yellow light

    • Cyan light

    Correct Answer
    A. Cyan light
    Explanation
    To make red light white, cyan light needs to be added. Cyan light is a combination of green and blue light, and when mixed with red light, it creates white light. This is because white light is made up of all the colors in the visible spectrum, and by adding cyan light, the missing green and blue components are added to the red light, resulting in white light.

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  • 17. 

    When red light is compared with violet light,       

    • both have the same frequency

    • both have the same wavelength

    • Both travel at the same speed.

    • red light travels faster than violet light.

    Correct Answer
    A. Both travel at the same speed.
    Explanation
    The correct answer is both travel at the same speed. This is because the speed of light in a vacuum is constant and does not depend on the color or wavelength of the light. Therefore, both red and violet light, despite having different wavelengths, will travel at the same speed.

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  • 18. 

    Choose the incorrect statement

    • Primary pigments reflects one color primary and absorbs two

    • Complementary colors are two colors that combine to form white

    • Primary colors combine to form other colors

    • A secondary color is a combination of two primary colors

    Correct Answer
    A. Primary pigments reflects one color primary and absorbs two
    Explanation
    The statement "primary pigments reflects one color primary and absorbs two" is incorrect because primary pigments actually reflect one color and absorb all other colors.

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  • 19. 

    The primary pigments are _____ the primary colors.   

    • Complementary to

    • Associated with

    • The inverse of

    • Unrelated to

    Correct Answer
    A. The inverse of
    Explanation
    The primary pigments are the inverse of the primary colors. This means that the primary pigments are the opposite or complementary colors of the primary colors.

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  • 20. 

    Bending of light around a barrier is called...

    • Refraction

    • Diffraction

    • Reflection

    • Polarization

    Correct Answer
    A. Diffraction
    Explanation
    Diffraction is the bending of light around a barrier or through an opening, causing it to spread out and create a pattern of interference. This phenomenon occurs when light waves encounter an obstacle or a slit that is comparable in size to their wavelength. Refraction is the bending of light when it passes from one medium to another, reflection is the bouncing back of light when it hits a surface, and polarization is the alignment of light waves in a specific direction. Therefore, diffraction is the correct answer as it specifically refers to the bending of light around a barrier.

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  • Current Version
  • Sep 13, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 24, 2013
    Quiz Created by
    Denise_nambiar21
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