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Post-UTME Physics 2010 Objective — Question 10

Question 10 of 10 from the Post-UTME Screening (Post-UTME) Physics 2010 Objective paper, with the correct answer and a full explanation.

A thin converging lens has a power of 4.0 diopters, determine its focal length

A. 0.25mCorrect
B. 0.03m
C. 5.00m
D. 2.50m

Explanation

Focal length = 1/Power = 1/4.0 = 0.25m.

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