Numerical based on radius of curvature — task. Physics CBSE Live product, Class 10 (2026-27).

Find the correct value:

Focal length of a spherical mirror is −29 \(cm\). Find its radius of curvature.

Radius of curvature \(=\) \(cm\)

[Note: Enter your answer with no decimal digits.]

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5. Numerical based on radius of curvature