Properties of Visible Light
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Questions and Answers

What is brightness a qualitative expression of?

  • Light perception
  • Light wavelength
  • Light intensity (correct)
  • Luminous intensity

    • What is the unit used to measure luminous intensity?

  • Lux
  • Candela (correct)
  • Lumen
  • Watt

    • How does the intensity of light change based on distance from the source?

  • Increases as you get closer (correct)
  • Remains constant regardless of distance
  • Depends on the color of the light
  • Decreases as you get closer

    • Which light wave property is related to the brightness or intensity of light?

    <p>Amplitude</p> Signup and view all the answers

    Which color of visible light has the longest wavelength?

    <p>Red</p> Signup and view all the answers

    What does the color white represent in terms of visible light?

    <p>Combination of all wavelengths</p> Signup and view all the answers

    What is the speed of visible light?

    <p>299,792,458 meters per second</p> Signup and view all the answers

    Which type of frequency electromagnetic wave is visible to the human eye?

    <p>Visible light spectrum</p> Signup and view all the answers

    What is the phenomenon in which a prism separates white light into component colors called?

    <p>Dispersion</p> Signup and view all the answers

    Which of the following is NOT a component color of white light?

    <p>Purple</p> Signup and view all the answers

    What is the science of measuring the intensity or brightness of light called?

    <p>Photometry</p> Signup and view all the answers

    Which type of wave does not require a medium in order to propagate?

    <p>Electromagnetic wave</p> Signup and view all the answers

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