Young's double slit introduction | Light waves | Physics | Khan Academy

We can see interference in action if we shine laser light through two slits onto a screen. Created by David SantoPietro.

Physics on Khan Academy: Physics is the study of the basic principles that govern the physical world around us. We'll start by looking at motion itself. Then, we'll learn about forces, momentum, energy, and other concepts in lots of different physical situations. To get the most out of physics, you'll need a solid understanding of algebra and a basic understanding of trigonometry.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

[ThatDudeEddiee]

I spent 1 hour in lecture and 1 hour in lab and was so confused as to understanding the constructive/destructive interference, the first minute at 40 seconds answered just that. BIG THANKS.

[CorisWorld]

Beyond incredible instructor!! He not only explains the right way but also shows you common misconceptions to avoid.

[AlonePlaying]

Dude, i'm from Brazil and I'm really thankful for this video. I wasn't understanding a bit of what my college's teacher was saying, you'll save my exercises. Keep doing a great job!

[Creativekid-]

Omg! My Clarity level reached peaks🤩
You are just amazing sir 😍
Thank you so much for helping me to understand beyond my textbook 🙏

[ishantripathi]

Oh boy! Oh boy! Oh boy! Man you explained the concepts so clearly and simply. Hats off!

[barbros]

Already 2 mins in and I've learnt more than weeks of school. This teacher also doesn't sound boring and monotone. 10/10

[johnparks]

I went through so many videos... And this one finally did it for me!! Thank you so much. Here's what I couldn't understand: why were they showing waves as propagating lines when, in reality, they were like the sine and cosine waves with peaks and troughs? This videos answered that question and even explained where they would interfere constructively and where deconstructively, Beautifully explained!

[amartyachoudhury]

Beautiful explanation.... especially that part where you explain how the wavefronts from the two slits interfere constructively or destructively; and finally on the screen... very helpful; thanks a lot

[TheGatoroberto]

Thanks, good video and made very clear ... probably the easiest and most understandable explanation that I have ever found about this experiment

[muhammadtouhid]

first time in my life, i have realized what the circular form of wave representation means, all after passing everything, huh

[aishwaryagorti]

This really helped me to understand what actually happens in the experiment... This was so helpful. Thanx a lot

[ydkathy]

ur ten minutes have covered the content that my teacher spent classes talking about with clearer explanation. Thanks a lot :)

[sheriff]

Just take a minute and praise how satisfying the drawing on 4:32 is.
Thank you sir.

[KashafNaeem.]

Thanks this was first video i saw in this chanel and was good not boring

[melynx]

This helped me trillions! I learnt in roughly 10 minutes what I struggled to understand in hours of lectures. Thank you so much! ❤

[mugdhorozario]

Sir, The explanation enhanced my understanding. If I didnt watch this video, I would have lived under a rock with thousands of confusions So sir, I would like to thank you and would encourage you to keep up the good work for us, students.

[FelisChow]

Thanks for the lecture. Got me to viusalize the phenomenon .

[maazali]

seriously i just understand the whole concept thank you very much.GOD bless you

[josephgeraci]

Every time I think about this concept, it blows my mind that this is how the real world works around us

[yoanch]

Bro, you have no idea how much this video helped me understand those things