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Author Question: Mahmood is farsighted and cannot see objects clearly that are closer to his eye than 80.0 cm. What ... (Read 43 times)

nenivikky

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Mahmood is farsighted and cannot see objects clearly that are closer to his eye than 80.0 cm. What is the focal length of the contact lenses that will enable him to comfortably see objects at a distance of 25.0 cm from his eyes?
 
  A) +36.4 cm
  B) -36.4 cm
  C) -21.2 cm
  D) +21.2 cm
  E) +32.5 cm

Question 2

Olga is nearsighted and cannot see things beyond 90 cm cm from her eyes. What is the refractive power of the contact lenses that will enable her to comfortably see distant buildings clearly?
 
  A) +1.1 diopters
  B) -1.1 diopters
  C) -1.7 diopters
  D) -2.2 diopters
  E) +2.2 diopters


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yeungji

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nenivikky

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Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)


bimper21

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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