Question

The relation between focal length and radius of curvature of a spherical mirror is

• A. $f=\frac R2$
• B. $f=2R$
• C. $R=f$
• D. $R=3f$

Answer 1

Answer: (A)

$f=\frac R2$

Answer 2

The correct option is (A): $f=\frac R2$.