Let p denote the object-lens distance and i the image-lens distance.The image produced by a lens of focal length f has a height that can be obtained from the object height by multiplying it by:
A)p/i
B)i/p
C)f/p
D)f/i
E)i/f

Question

Quizplus · Accepted Answer

The magnification of a lens, which is the ratio of the image height to the object height, is given by the formula $ \text{Magnification} = \frac{i}{p} $, where $i$ is the image distance and $p$ is the object distance.

Let P Denote the Object-Lens Distance and I the Image-Lens