the radius of curvature of a spherical mirror is 28 cm what is its focal length
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Answer:
R=2f
R/2=f
28/2=f
f=14cm
Hope u understood......
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The focal length of the given spherical mirror is 14cm.
Given,
The radius of curvature of a spherical mirror is = 28cm.
To Find,
The focal length of the spherical mirror.
Solution,
We can solve this problem in this manner.
The radius of mirror curvature (R) = 28 cm.
The radius of curvature of the mirror = 2 X Focal length (f).
So, R= 2f
f= R/2
f = 28/2
f = 14cm
Therefore, the focal length of the given spherical mirror is 14cm.
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