Find the focal length of a spherical lens whose
radius of curvature is 20.
Answers
Answered by
1
Answer:
r = 2× f
f = r/2
f =20/2
= 10
Answered by
0
Explanation:
Radius of curvature (R) = 20 cm
Radius of curvature of a spherical mirror = 2 — Focal length (f)
R= 2f
f= R/2
f = 20 / 2
f = 10
Hence, the focal length of the given spherical mirror is 10 cm
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