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    College Physics Study Set 2
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    Exam 25: Optical Instruments
  5. Question
    A Lens with a Focal Length of 20 Cm Has
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A Lens with a Focal Length of 20 Cm Has

Question 61

Question 61

Multiple Choice

A lens with a focal length of 20 cm has what power?


A) 5.0 diopters
B) 0.2 diopters
C) 2 diopters
D) -5.0 diopters
E) 0.02​ diopters

Correct Answer:

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