Calculating the Magnification of a Telescope
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Calculating the Magnification of a Telescope

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@HandierSquirrel

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Questions and Answers

If the Obsession-20 telescope's mirror has a focal length of 2540 mm, what is the magnification when using the eyepiece in Prime Focus observing?

  • 100x
  • 25x (correct)
  • 254x
  • 500x

    • What is the focal length of the human eye used as an eyepiece for the Obsession-20 telescope in Prime Focus observing?

  • 10 mm
  • 250 mm (correct)
  • 1000 mm
  • 25 cm

    • What is the focal length of the mirror of the Obsession-20 telescope used in Prime Focus observing?

  • 170.0 cm
  • 32,524 mm
  • 2540 mm (correct)
  • 5.9 mm

    • If the focal length of the human eye was 1000 mm, what would be the magnification for the Obsession-20 telescope in Prime Focus observing?

    <p>17500x</p> Signup and view all the answers

    What would be the magnification for the Obsession-20 telescope in Prime Focus observing if the eyepiece's focal length was 4 mm?

    <p>120x</p> Signup and view all the answers

    In Prime Focus observing with the Obsession-20 telescope, what would be the magnification if there was no eyepiece used and only the human eye with a focal length of 1.83 cm was employed?

    <p>24x</p> Signup and view all the answers

    What is the role of the eyepiece in a telescope?

    <p>To change the angle of the rays from the objective as they enter the eye</p> Signup and view all the answers

    In the given proportion, what does H represent?

    <p>Image size produced by the eyepiece</p> Signup and view all the answers

    What is the formula for calculating magnification in a telescope?

    <p>$F/f$</p> Signup and view all the answers

    What is the magnification of the David Dunlap telescope?

    <p>57600</p> Signup and view all the answers

    If an eyepiece was eliminated and the human eye was used instead, what effect would this have on the magnification of the image?

    <p>Have no effect on magnification</p> Signup and view all the answers

    If an eyepiece with a focal length of 8 mm is used with an objective lens of 1600 mm, what is the magnification?

    <p>500</p> Signup and view all the answers

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