ExamPlay Light Logo
登入

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

解释

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

评论 (0)

广告