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Physics CBSE Live product
Class 10 (2025-26)
Light reflection and refraction
Annual Revision V - Light
3.
Focal length of the convex mirror
Question:
3
m.
Find the focal length of a convex mirror whose radius of curvature is \(27\ cm\).
Formula to
focal length of the convex mirror
is,
\(f\ =\ \frac{R}{2}\)
\(f\ =\ \frac{R}{4}\)
\(f\ =\ 2R\)
\(f\ =\ 4R\)
Focal length
(\(f\)) \(=\)
\(cm\)
Important!
Note: Enter your answers with one decimal digits.
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