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Night Vision and Color Perception
30 Questions
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Night Vision and Color Perception

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@DeadOnCoralReef

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Questions and Answers

Which of the following measures the actual light energy of a source?

  • Reflectance
  • Illuminance
  • Luminous intensity
  • Luminous flux (correct)

    • Which of the following measures the amount of light that strikes the surface of an object?

  • Luminous flux
  • Illuminance (correct)
  • Luminous intensity
  • Reflectance

    • Which of the following measures the brightness of a stimulus?

  • Luminance (correct)
  • Luminous flux
  • Illuminance
  • Luminous intensity

    • Which of the following measures the reflectivity of a surface?

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

    Based on the text, what caused the traveler to climb into the wrong car?

    <p>The traveler couldn't easily tell which car was red and which was brown</p> Signup and view all the answers

    What caused the traveler to give up on using the city map?

    <p>The traveler couldn't read the printed street names on the map</p> Signup and view all the answers

    What made it difficult for the traveler to find the wiper switch?

    <p>The dark printed labels on the switch couldn't be read against the gray interior</p> Signup and view all the answers

    Why did the traveler miss the turnoff to his destination?

    <p>The sign indicating the turnoff was on the left side of the highway</p> Signup and view all the answers

    Which of the following best describes the relationship between wavelength and hue in the visual spectrum?

    <p>Short wavelengths correspond to blue hues, while long wavelengths correspond to red hues.</p> Signup and view all the answers

    Which of the following statements is true about the CIE color space?

    <p>It represents all colors in terms of two primary colors: long and medium wavelengths.</p> Signup and view all the answers

    What determines the brightness of a visual stimulus?

    <p>The amplitude of the stimulus</p> Signup and view all the answers

    What is the main reason night driving in unfamiliar locations is hazardous?

    <p>The limits of the visual sensory system</p> Signup and view all the answers

    Which visual sensory system is responsible for the ability to detect and recognize shapes based on contrast?

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

    What is contrast sensitivity defined as?

    <p>The reciprocal of the minimum contrast between a lighter and darker spatial area that can just be detected</p> Signup and view all the answers

    What is the relationship between spatial frequency and contrast sensitivity?

    <p>Lower spatial frequencies result in higher contrast sensitivity</p> Signup and view all the answers

    What is the minimum separable acuity a measure of?

    <p>Visual acuity</p> Signup and view all the answers

    Which part of the eye is responsible for adjusting its shape to bring the image to a precise focus on the retina?

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

    What is the resting state of accommodation?

    <p>The state when the muscles are doing little work at all</p> Signup and view all the answers

    What is myopia?

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

    What is presbyopia?

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

    Which type of receptor cells are exclusively found in the fovea?

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

    What is the relationship between acuity and the spacing of receptor cells?

    <p>Acuity is higher with closely spaced cones</p> Signup and view all the answers

    What is the term used to describe the minimum amount of light that can be detected by receptor cells?

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

    Which type of vision refers to vision at night when only rods are operating?

    <p>Scotopic vision</p> Signup and view all the answers

    Which factor influences contrast sensitivity as seen in Figure 4?

    <p>Contrast levels</p> Signup and view all the answers

    What is the effect of lower illumination on contrast sensitivity?

    <p>It decreases contrast sensitivity</p> Signup and view all the answers

    What is the main cause of difficulty in reading the label against the gray dashboard?

    <p>Contrast levels</p> Signup and view all the answers

    What would make it easier to read the label?

    <p>Printing the label against a white background</p> Signup and view all the answers

    What is the main cause of frustration for users of products like VCRs?

    <p>Color contrast</p> Signup and view all the answers

    What type of slides may be hard for the viewing audience to read?

    <p>Slides with black text against a blue background</p> Signup and view all the answers

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