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MMLU-Pro / 9566 / Two lenses, A and B, have equal focal lengths but A has twice the diameter of B.…

Problem

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question

Two lenses, A and B, have equal focal lengths but A has twice the diameter of B. (a) What is the ratio of energy collected by lens A to that collected by lens B? (b) What is the corresponding ratio of the areas of the diffraction patterns? (c) What is the ratio of the energy per unit area in the two patterns?

category

physics

options

  1. 1:4, 4:1, 1:16
  2. 1:1, 1:1, 1:1
  3. 2:1, 4:1, 1:1
  4. 4:1, 2:1, 1:16
  5. 4:1, 1:4, 16:1
  6. 2:1, 1:2, 1:2
  7. 2:1, 1:2, 4:1
  8. 4:1, 4:1, 16:1
  9. 1:2, 2:1, 1:4
  10. 8:1, 1:8, 64:1

src

stemez-Optics

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