Physics

Problem

A physics student graphs

1/s_i

(vertical axis) versus

1/s_o

(horizontal axis) using data from a concave spherical mirror. The graph is a straight line that crosses the vertical axis at

0.040\,\text{cm}^{-1}

. Which quantity is represented by this vertical intercept? a)

\displaystyle -\frac{1}{f}

\displaystyle \frac{1}{s_o}

\displaystyle \frac{1}{f}

\displaystyle \frac{1}{R}