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MMLU-Pro / 9757 / A 5-cm plane mirror is just large enough to show the whole image of a tree when…

Problem

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

question

A 5-cm plane mirror is just large enough to show the whole image of a tree when held 30 cm from the eye of an observer whose distance from the tree is 100 m. What is the height of the tree?

category

physics

options

  1. 16.67m
  2. 18.5m
  3. 30m
  4. 22.5m
  5. 10m
  6. 12m
  7. 25m
  8. 14m
  9. 20m
  10. 15m

src

stemez-Optics

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Source and history

Official source

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