WAEC - Physics (2003 - No. 22) | ExamPlay

WAEC - Physics (2003 - No. 22)

A converging lens has a focal length of 5cm. Determine its power

+20.0

+0.2

-20.00

-0.2

Forklaring

p = \(\frac{100}{f} = \frac{100}{+5} = +20\)

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