The solution at revision #17966 of , by JustABeast. This is not the current version.

Statement

13.1.13. Determine the focal length of a spherical mirror of radius of curvature .

Solution

For problem $13.1.13$
For problem
For problem $13.1.13$
For problem

Here it was used that , no matter what the original value is. Since the incident height does not change where the ray converges.

Answer

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