Timeline for Why is it necessary for all the light rays to reach the focus of a spherical mirror at the same time?
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
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| Jun 2, 2019 at 7:05 | answer | added | halfbloodprince | timeline score: -1 | |
| May 21, 2019 at 8:36 | comment | added | Amritansh Joshi | I read your answer to the possible duplicate, which was very satisfactory, one thing I want to ask is that does fermat's principle say that if all rays coming from a source meet at the same point, they would've all done it in the same time(i.e the minimum time path of one ray is equal to that of any other ray)? | |
| May 19, 2019 at 19:16 | comment | added | dmckee --- ex-moderator kitten | There is certainly a close relationship between this question and the proposed duplicate, but I think that this one is much more direct and clear in asking how Fermat's principle related to the foundation of rays optics. | |
| May 19, 2019 at 19:13 | answer | added | dmckee --- ex-moderator kitten | timeline score: 0 | |
| May 19, 2019 at 18:44 | comment | added | jacob1729 | Possible duplicate: physics.stackexchange.com/questions/323701/… | |
| May 19, 2019 at 14:00 | comment | added | jacob1729 | 1) The actual shape that reflects achieves this is a parabola/parabaloid. One can locally approximate a parabola with a circle that best fits the minimum. 2) This result only applies to rays parallel with the axis of the parabola. For rays close to the axis this doesn't matter as much since as above it can be modelled as spherical so the axis isn't well defined. | |
| May 19, 2019 at 12:20 | review | First posts | |||
| May 19, 2019 at 14:10 | |||||
| May 19, 2019 at 12:16 | history | asked | Amritansh Joshi | CC BY-SA 4.0 |