Question

The focal length of a concave mirror is 10 cm.
Find its radius of curvature.​

Answer 1

$\huge{\fbox{\fbox{\mathfrak{\red{Solution}}}}}$

R=2f

Given-

f=10 cm=10/100=0.1 m

R=2×0.1=0.2 m

On conversion-

0.2 m=20 cms