2F or C...?

Asked by palaksophia | 29th Apr, 2009, 12:06: PM

Expert Answer:

C- Centre of Curvature

F- Focus

Mathematically: 2 x focal length =radius of curvature

Its just by convention we use C for mirrors(which are part of 1 sphere) and 2F for lenses.

Answered by  | 29th Apr, 2009, 02:01: PM

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