Thin lens equation and problem solving | Geometric optics | Physics | Khan Academy

Some examples of using the thin lens equation. Created by David SantoPietro.
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[@XxPepper17xX]

how one man can so clearly explain in 12 minutes what my professor fails to explain in 2 hours i will never understand

[@etereo7465]

how did u get 6 in 1/8-1/24

[@qwertytwerqy2440]

Not even 20 seconds in the video and David has already figured out my dilemma in this lesson---"When are these positives or negatives?". Literally made me excited that I was watching the correct video.

[@maddieezard8746]

How did you get from 1/-8cm - 1/24 to -1/6cm ?

[@kid2519]

Not good. The issue of this video is how the image is formed. It is missing information.

[@mr_nuclear1547]

This man has likely single handedly boosted the worlds GPA

[@asiasimone1416]

how did you go from -8cm-24cm equals 6 😭

[@asiasimone1416]

this is on my exam tomorrow and my teacher didn’t even teach this 😭 gr 10 btw

[@sebastianmichalski5318]

Sal, please put David's videos into the main list with physics and math videos, especially those about waves. These are the best lessons I've ever heard.

[@harofax7726]

Watching these the day before the exam like a crazed hobo frantically searching for cigarette butts on the street to get his kick

[@MK2EA]

You save so many lives everyday!

[@jdm68]

anyone with exams tomorrow trying to study on youtube

[@shauryaaggarwal8141]

I was so depressed not understanding this for weeks and you just solved it out in 10 mins...

[@pitchingwedge7546]

Crazy shit being taught in Grade 10 nowadays

[@Mo-qb5fb]

im not even studdying for the mcat but this summed up 2 weeks of lecture in 10 minutes you are a fucking boss thanks

[@TheBadbowman]

This is remarkably articulated. Thank you.

[@breannabuhay3192]

This is the absolute BEST video I've watched for thin lens, thank you so much

[@RevanthBoomBoom]

Yes, i think sal must add these videos in the playlist, it would be very convinient

[@tyty685]

Best Khan instructor I've watched, thank you for the help.

[@lashariali7307]

upload more and more lectures on every small or big topic☺ your doing greaaat work🙋🙋