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Physics CBSE Live product
Class 10
Light reflection and refraction
Annual Revision III - Light
3.
HOTS - Focal length of the mirror
Question:
2
m.
For a concave mirror of radius of curvature 𝑅 R, the focal length 𝑓 f (using mirror formula) is
\(f\ =\ \frac{R}{2}\)
\(f\ =\ R\)
\(f\ =\ 2R\)
\(f\ =\ \frac{R}{3}\)
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