![[Magnification .excalidraw.svg]] %%[[Magnification .excalidraw.md|🖋 Edit in Excalidraw]]%% $\huge \theta=\frac{ h}{N} $ ![[Magnification _0.excalidraw.svg]] %%[[Magnification _0.excalidraw.md|🖋 Edit in Excalidraw]]%% $\huge \begin{align} M = \frac{\theta'}{\theta} = \frac{N}{f} \end{align}$ ![[Magnification _1.excalidraw.svg]] %%[[Magnification _1.excalidraw.md|🖋 Edit in Excalidraw]]%% $\huge M = \frac{-f_{0}}{f_{e}} $