Timeline for Why do telescopes converge light instead of diverge?
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 23 at 10:55 | answer | added | Thomas Fritsch | timeline score: 1 | |
| Nov 22 at 18:14 | comment | added | gidds | The image shows only parallel rays in one particular direction. (For a sharp image, you want all of those to be focussed to a single point — which requires a convex lens.) Consider what happens to parallel rays in other directions. Similar applies to mirrors too. | |
| Nov 22 at 9:35 | history | became hot network question | |||
| Nov 22 at 1:42 | answer | added | Ruffolo | timeline score: 12 | |
| Nov 21 at 18:57 | answer | added | Whit3rd | timeline score: 1 | |
| Nov 21 at 18:56 | comment | added | Ján Lalinský | What are $A',B'$? Concave lens create smaller image (I use them and I've checked that now). | |
| Nov 21 at 18:56 | answer | added | Ken Horne | timeline score: 0 | |
| Nov 21 at 18:40 | comment | added | Matt | A concave lens does not imply a magnified image. In fact, it is the opposite. | |
| Nov 21 at 18:32 | comment | added | The Photon | Just because a concave lens causes parallel rays to diverge doesn't mean that a concave mirror does the same thing. | |
| Nov 21 at 18:25 | history | asked | Rutajit45 a dude | CC BY-SA 4.0 |