But to find the image distance of thin lens you have applied mirror formula.. Lens formula is to be applied. You have applied:- 1/f = 1/v + 1/u It should be:- 1/f = 1/v - 1/u So, then image distance would be 15 cm.
very cool video! i'm currently building this mini 6in tall, 4in wide arcade cabinet... but the 320x240 lcd I got is ridiculously small at only 2in So I got this crazy idea and ordered a square magnifying glass lens. And it almost works great by itself, it actually has a pretty cool trippy effect. i like seeing those areas between the pixels blown up so big it kind of reminds me of old crt scanlines. but i wanted it just a little bigger without having to make the cabinet so thick to compensate. I had one of those cheap full page Fresnel things laying around and put that back to back with the lens and saw it gave me the distance/size i wanted... but those lenses are the worst for pixel based video games, all those circles add a jaggy mooring effect to the image. so i just ordered a second identical square magnifying lens and it should work out i hope. I'm just rambling on with all the backstory ha... anywho all this stuff got me binge watching this type of content and I fully enjoyed and learned things from this video. thank you :)
How will I know when the image distance is negative? that's not given in the problem? Also I thought that convex lens have a negative Focal length.? maybe im wrong.
You are very good at explaining!!!! Thanks a lot for your help and posting the videos.
Thanks Kelly! Im glad they are helping you!
its wrong he has exchanged the formula here.. even for magnification
Awesome Explanation
Absolutely Amazing
But to find the image distance of thin lens you have applied mirror formula.. Lens formula is to be applied.
You have applied:- 1/f = 1/v + 1/u
It should be:- 1/f = 1/v - 1/u
So, then image distance would be 15 cm.
exactly he has exchanged the formula here.. even for magnification
Formula used is wrong but he got the ans correct
very cool video! i'm currently building this mini 6in tall, 4in wide arcade cabinet... but the 320x240 lcd I got is ridiculously small at only 2in So I got this crazy idea and ordered a square magnifying glass lens. And it almost works great by itself, it actually has a pretty cool trippy effect. i like seeing those areas between the pixels blown up so big it kind of reminds me of old crt scanlines. but i wanted it just a little bigger without having to make the cabinet so thick to compensate. I had one of those cheap full page Fresnel things laying around and put that back to back with the lens and saw it gave me the distance/size i wanted... but those lenses are the worst for pixel based video games, all those circles add a jaggy mooring effect to the image. so i just ordered a second identical square magnifying lens and it should work out i hope. I'm just rambling on with all the backstory ha... anywho all this stuff got me binge watching this type of content and I fully enjoyed and learned things from this video. thank you :)
I understand here a lot more than i do in my class..;)
YOU VERY GOOD MAN!
Thanks, It was extremely helpful :)
I think do2 is possive sign and di2 is negative sign
Thank you!!!
How will I know when the image distance is negative? that's not given in the problem? Also I thought that convex lens have a negative Focal length.? maybe im wrong.
if i'm not mistaken the Concave lens is actually the one with the negative focal length :=