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MMLU-Pro / 9353 / A concave lens with focal length 12 cm is placed in con-tact with a convex lens…

Problem

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

question

A concave lens with focal length 12 cm is placed in con-tact with a convex lens of focal length 7.5 cm. Find the refracting power of the combination.

category

physics

options

  1. - 7.5diopters
  2. 19.5 diopters
  3. 12diopters
  4. - 5diopters
  5. 8 diopters
  6. -12 diopters
  7. 4.5 diopters
  8. - 3diopters
  9. -19.5 diopters
  10. 0 diopters

src

stemez-Optics

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Source and history

Official source

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