Question

The magnification of a lens is given by
(v = Image distance and u = Object distance as per sign convention)

• A. $\frac{v}{u}$
• B. $\frac{u}{v}$
• C. $\frac{-u}{v}$
• D. $\frac{-v}{u}$

Answer 1

The correct option is A $\frac{v}{u}$

Magnification (m) of a lens = $\frac{h^{\prime }}{h}=\frac{v}{u}$
Where h' = Height of the image,
h = Height of the object,
v = Image distance, and
u = Object distance.