Determine the focal length of a thin converging lens if the power is 5.0 dioptres
PHYSICS
JAMB 2017
Determine the focal length of a thin converging lens if the power is 5.0 dioptres
- A. 0.1 m
- B. 0.2 m
- C. 2.0 m
- D. 2.5 m
Correct Answer: B. 0.2 m
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Power of lens=1/f
F =1/5 = o.2