Physics · 2021
JEE Main · 24 February 2021, Shift 1 · Q19
The focal length f is related to the radius of curvature r of the spherical convex mirror by:
The focal length $\displaystyle f$ is related to the radius of curvature r of the spherical convex mirror by :
Official answer
(4)
$\displaystyle f=+\frac{1}{2} \mathrm{r}$
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.