Em Spectrum - Visible Light

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| By L-ionel
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L-ionel
Community Contributor
Quizzes Created: 15 | Total Attempts: 7,016
| Attempts: 2,589
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  • 1/5 Questions

    How many colours are there in the spectrum?

    • 4
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About This Quiz

This quiz focuses on the properties of visible light within the electromagnetic spectrum, testing knowledge on wavelength colors and perception.

Em Spectrum - Visible Light - Quiz

Quiz Preview

  • 2. 

    Red has the shortest wavelength

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement "Red has the shortest wavelength" is false. In the visible light spectrum, red light has the longest wavelength, while violet light has the shortest wavelength. The order of the visible light spectrum from longest to shortest wavelength is: red, orange, yellow, green, blue, indigo, and violet.

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  • 3. 

    Visible light rays cannot be seen by the naked eye.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Visible light rays can be seen by the naked eye. Visible light refers to the range of electromagnetic radiation that is visible to humans. It includes the colors of the rainbow, such as red, orange, yellow, green, blue, indigo, and violet. These colors can be seen by the naked eye when light enters the eye and is detected by the photoreceptor cells in the retina. Therefore, the statement that visible light rays cannot be seen by the naked eye is false.

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  • 4. 

    Violet has the longest wavelength

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement "Violet has the longest wavelength" is incorrect. In the visible light spectrum, violet light actually has the shortest wavelength. The colors in the visible light spectrum are arranged in increasing order of wavelength, with red having the longest wavelength and violet having the shortest.

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  • 5. 

    When all the waves are seen together, they make black light.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement "When all the waves are seen together, they make black light" is incorrect. When all the waves are seen together, they make white light, not black light. White light is a combination of all visible colors of light, while black light is the absence of light or the complete absence of any color.

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  • Current Version
  • Mar 21, 2022
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 15, 2009
    Quiz Created by
    L-ionel
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