Radius & Focal Length of Concave/Convex Mirrors: Formula & Answers

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SUMMARY

The discussion clarifies the relationship between the focal length and radius of curvature for concave and convex mirrors. A concave mirror with a focal length of 26 cm has a radius of curvature calculated using the formula R = 2f, resulting in a radius of 52 cm. Conversely, a convex mirror with a radius of curvature of 60 cm has a focal length of 30 cm, derived from the same formula. The established formula R = 2f is confirmed as accurate for both types of mirrors.

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A concave mirror has a focal length of 26 cm. What is the radius of curvature of the mirror?

and also

The radius of curvature of a convex mirror is 60 cm. What is the focal length of the mirro?

Can anyone tell me the formula for finding each of the answer?...
 
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R has always the absolute value of 2f.
 
what is R and what is 2f , can you specify it for me please..
 
R is the radius of curvature anf f is the focal length.
 
so formula for this is R=2f?
 
Yes.
 

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