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

Vysvetlenie

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

Pripomienky (0)

Reklama