Question

The radius of curvature of a spherical mirror is 20 cm. What is its focal length?
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Answer 1

$\huge{\mathcal{\green{Answer}}}$

❤ Radius of curvature =2(focal length)

$\large{20cm=2(f)}$

$\large{20cm/2=f}$

$\huge{\mathcal{\blue{focal\:length=10cm}}}$

Answer 2

☆$\red {HELLO\:DEAR}$☆

Given: radius of curvature (R) = 20 cm

The focal length of the mirror is = F=R/2 = 10 cm

☆$\green {VISHU\:PANDAT}$☆

☆$\blue {FOLLOW\:ME}$☆