Правка разделов «Statement», «Solution», «Answer»
en/13.1.13.md
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| @@ -1,15 +1,15 @@ | |||
| ### Statement | |||
| − | $13.1.13.$ | ||
| + | $13.1.13.$ Determine the focal length of a spherical mirror of radius of curvature $R$. | ||
| ### Solution | |||
|  | |||
|  | |||
| + | Here it was used that $h' = 0$, no matter what the original $h$ value is. Since the incident height does not change where the ray converges. | ||
| − | |||
| #### Answer | |||
| − | [Insert a concise answer or boxed result] | ||
| + | [$\frac{R}{2}$] | ||
| @@ -1,15 +1,15 @@ | |||
| ### Statement | ### Statement | ||
| $13.1.13.$ |
$13.1.13.$ Determine the focal length of a spherical mirror of radius of curvature $R$. | ||
| ### Solution | ### Solution | ||
|  |  | ||
|  |  | ||
| Here it was used that $h' = 0$, no matter what the original $h$ value is. Since the incident height does not change where the ray converges. | |||
| #### Answer | #### Answer | ||
| [Insert a concise answer or boxed result] | [$\frac{R}{2}$] | ||