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MMLU-Pro / 9659 / A difference of 8 mm prevails between the positions of an image when the object…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A difference of 8 mm prevails between the positions of an image when the object is at infinity and when it is 0.2 m from the object-side of a convex lens. What is the focal length of the lens?

category

physics

options

  1. 40 mm
  2. 50 mm
  3. 34.8 mm
  4. 45 mm
  5. 42.7 mm
  6. 32 mm
  7. 28.5 mm
  8. 24 mm
  9. 30.5 mm
  10. 36.2 mm

src

stemez-Optics

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Source and history

Official source

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