Edits to “Statement”, “Solution”, “Answer”
en/13.1.13.md
+3 −3
| @@ -1,15 +1,15 @@ | |||
| ### Statement | |||
| − | $13.1.13.$ Determine the focal length of a spherical mirror of radius of curvature | ||
| + | $13.1.13.$ Determine the focal length of a spherical mirror of radius of curvature R. | ||
| ### Solution | |||
|  | |||
|  | |||
| − | Here it was used that | ||
| + | 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 | |||
| − | [ | ||
| + | [R/2] | ||
| @@ -1,15 +1,15 @@ | |||
| ### Statement | ### Statement | ||
| $13.1.13.$ Determine the focal length of a spherical mirror of radius of curvature |
$13.1.13.$ Determine the focal length of a spherical mirror of radius of curvature R. | ||
| ### Solution | ### Solution | ||
|  |  | ||
|  |  | ||
| Here it was used that |
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 | ||
| [ |
[R/2] | ||