Question

[3/13, 5:50 PM] Banso Bernard: What is focal point and optical centre
[3/13, 5:53 PM] Banso Bernard: 5. A converging lens can be used as
magnifying glass, only when the object is
placed
A. at the focal point.
B. between the focal point and a distance
twice the focal length.
C. between the focal point and the optical
centre.
D. at a distance twice the focal length.
[3/13, 5:54 PM] Banso Bernard: According to my book the answer is c so I want to know focal point and optical centre​

Answer 1

at focal point or between focal length or lense...

please mark me as a brainlist...