A converging lens has a focal length of 5cm. Determine its power
A
+20.0
B
+0.2
C
-20.00
D
-0.2
Verified Correct Answer: A.
Physical Principles & Numerical Solution
p = \(\frac{100}{f} = \frac{100}{+5} = +20\)
Source: Myschool Past Questions Archive (Record #34221)