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JAMB Physics 2021 Objective — Question 30

Question 30 of 40 from the Joint Admissions and Matriculation Board (JAMB) Physics 2021 Objective paper, with the correct answer and a full explanation.

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Converging lens, focal length 50 cm. Its power:

  • A. 2.0 DCorrect
  • B. 2.00 D
  • C. 0.01 D
  • D. 1.00 D

Explanation

P=1/f=1/0.5=2.0 D.

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