Physics, asked by Anonymous, 4 months ago

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

Answers

Answered by Anonymous

10

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

Answer-

Radius of curvature (R) = 20 cm

Radius of curvature of the spherical mirror = 2 × Focal length (f)

R = 2f

f= R/2 = 20 / 2 = 10

Therefore, the focal length of the spherical mirror is 10 cm.

Answered by Anonymous

2

Focal length = 21× radius of curvature = 21×20 cm

= 10cm.

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