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MMLU-Pro / 9973 / A circular aperture 1 cm in diameter acts as an entrance pupil. The aperture is…

Problem

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question

A circular aperture 1 cm in diameter acts as an entrance pupil. The aperture is placed halfway between an extended light source and a lens of 10 cm focal length which projects an image of the light source onto a screen 14 cm away from the lens. What is the diameter of the exit pupil?

category

physics

options

  1. 2 cm
  2. 0.66 cm
  3. 2.5 cm
  4. 0.5 cm
  5. 1.25 cm
  6. 0.8 cm
  7. 1.33 cm
  8. 1.5 cm
  9. 1 cm
  10. 1.77 cm

src

stemez-Optics

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