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JAMB Physics 2017 Objective — Question 31

Question 31 of 40 from the Joint Admissions and Matriculation Board (JAMB) Physics 2017 Objective paper, with the correct answer and a full explanation.

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Determine the focal length of a converging lens if the power is 5.0 dioptres.

  • A. A. 0.1m
  • B. B. 0.2mCorrect
  • C. C. 2.0m
  • D. D. 2.5m

Explanation

f=1/P=1/5=0.2m.

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