Timeline for Why does an image only form where light rays coming from a single point get reflected or refracted and converge to a common point?
Current License: CC BY-SA 4.0
12 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 22, 2022 at 15:42 | comment | added | Mattia | @ArunBhardwaj the illuminated space you see in the image is an optical effect of light scattered in the camera lens | |
| Jun 21, 2022 at 13:11 | comment | added | Arun Bhardwaj | you can look for the pictures on internet of sun seen from outer space and you will see a very large illuminated space around it,,,,,its completely vaccum but its still bright how?? I think that's because of these points,,,,,so we should see these points as well,,,its not like we will not see them link :google.com/… | |
| Jun 21, 2022 at 13:06 | comment | added | Arun Bhardwaj | @ Also I don't understand ,,if we can't see those points....why do we see an illumination{illuminated space }around a bulb or any finite light source even in vaccum{because in air one can argue its the light scattered off from air molecules},,,,,say for e.g Observing sun from outer space ,,,you would see illuminated space around it,,,and you wouldn't be clearly able to determine where actual core of it is at.....its like its getting disappear in its own brightness | |
| Jun 21, 2022 at 12:53 | comment | added | Arun Bhardwaj | @jensenpaull I also think the same that interference has nothing to do with it,,,, the pinhole explanation somewhat takes up my question but the only thing lacking is any reliable/official article or source for confirmation,,,because why can't the rays that are close enough and coming from different object can converge at a common point? | |
| Jun 21, 2022 at 11:17 | comment | added | jensen paull | I'm pretty sure interference has absolutely NOTHING to do with our eyes detection of light, since the pinhole camera makes it so light from a single angle is present at any one location on the retina. | |
| Jun 21, 2022 at 11:11 | comment | added | jensen paull | [Given D isn't the retina] atleast. The other convergent points of light other than the ray that enters the pinhole are irrelevant. The eye determines vision by the angle at which it enters, the conclusion you can draw from a single cherry picked rays of converging light, is that your brain will register light coming from that single point of convergence. The eye doesn't directly detect distance. Only angle. Other light determines if our brain registers this light from coming close, or far away. | |
| Jun 21, 2022 at 11:09 | comment | added | jensen paull | Farcher, the presence of an image at the eye,is independent to the state of light at a different point in space... also your considering a single cherry picked bunch of rays, there are lots of "convergent points" to be made. The answer is that there is no image at D because our eye is a pinhole camera and gets blocked. See my edit 2 answer on OP's other question. | |
| Jun 21, 2022 at 11:04 | comment | added | Arun Bhardwaj | does all the rays emitting from a finite sized point source would be coherent? i.e same polarization, phase, frequency etc? is that why they can converge without cancelling? | |
| Jun 21, 2022 at 10:54 | comment | added | Farcher | It is not just the wavelength but the phase and polarisation as well. Also the wave trains are of finite length all this means that when the addition of the superposing waves is done it averages out to zero. | |
| Jun 21, 2022 at 10:34 | comment | added | Arun Bhardwaj | you have now understood the simple point I was trying to make,,,,and I have also understood your perspective .Please correct me if I am wrong but as I understand u are saying that light rays from these are not coherent and ultimately cancels out,,but do you have any reason for this? what if all points emits only a single wavelength? | |
| Jun 21, 2022 at 10:23 | comment | added | Arun Bhardwaj | can you link any official article or site from which you have come to this explanation? | |
| Jun 21, 2022 at 9:13 | history | answered | Farcher | CC BY-SA 4.0 |