Question

The focus length of a convex lens is 25 cm. Find out the radius of curvature of the lens ?​

Answer 1

• The focus length of a convex lens is 25 cm. Find out the radius of curvature of the lens ?

As we know that R= 2F where R is the radius of curvature and F is the focal Length...

R = 2F

= 2×25

= 50 cm

Answer 2

• We know that R = 2F where R is radius of curvature and F is focal length

$\bf{Using \: Formula \: } \: \\ \bf{ ↬R = 2F}\\ \implies\ 2 × 25 \\ \implies \: 50$