Wave Diffraction

110 - Wave Diffraction
In this video Paul Andersen explains how waves will diffract (or bend) around an obstacle or while traveling through and opening. Diffraction will be maximized when the size of the opening or obstacle matches the wavelength.
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Music Attribution
Title: String Theory
Artist: Herman Jolly
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All of the images are licensed under creative commons and public domain licensing:
Alexander, ESO/M. English: Astronomers Do Not Always Swim at the Swimming Pool at the Paranal Observatory Residencia, but When They Do, They like to Show How Physical Principles Work. In This Picture the French ESO Astronomer Jean-Baptiste Le Bouquin Is Demonstrating How Waves - Not Light Waves, but Water Waves - Can Combine, or Interfere, to Create Larger Waves., January 27, 2014. www.eso.org/pub.... commons.wikimed....
Cryonic07. English: Illustration of a Simple Ripple Tank. See Also Image:Simple Ripple Tank Paddle.svg, August 30, 2007. self-made This vector image was created with Inkscape, and then manually edited. Partly based on en:Image:Ripple tank.png and en:Image:Ripple tank motor.png. commons.wikimed....
“Diffraction Grating.” Wikipedia, the Free Encyclopedia, April 10, 2015. en.wikipedia.or....
it.wikipedia, Original uploader was A3XX at. Italiano: Fotografo:, December 4, 2006. Transferred from it.wikipedia. commons.wikimed....
Pajs. Vlneni Pri Pruchodu Bodovou Sterbinou (k Demonstraci Difrakce), April 28, 2015. Own work. commons.wikimed....
---. Vlneni Pri Pruchodu Kolem Velke Prekazky (k Denonstraci Difrakce), April 28, 2015. Own work. commons.wikimed....
---. Vlneni Pri Pruchodu Velkou Sterbinou (k Demonstraci Difrakce), April 28, 2015. Own work. commons.wikimed....
“Ripple Tank.” Wikipedia, the Free Encyclopedia, March 3, 2015. en.wikipedia.or....
“Wave Interference.” PhET. Accessed April 16, 2015. phet.colorado.....

[@naosheyrvaannasir5047]

what an effective video! its at a steady pace which makes it easy to learn and the explanation is crystal

[@anythingunderthesun9930]

Now this channel really explains DIFFRACTION that is easy to understand. Thanks and KUDOS!

[@-MikaelaWuisan]

Best video ever!!! Thank you so much for helping me clear up my doubts! Initially, I was confused whether my understanding about the gap being the same size as the wavelength, but the video cleared everything up! So it literally meant that if the gap was = to lambda then true diffraction (like the ones with a lot of bends) can be seen!

[@Abdullah-fc4tm]

This is still helpful 6 years later. Thanks!

[@mmehana]

I could not thank you enough! Thanks so much :)

[@doseoffaiyaz]

Excellent! I was confused and was sitting idle for half an hour trying to figure it out and my search results weren't helping.

[@KMirmil]

Why does the wave diffract so big when the gap is smaller than wavelenght? What is the connection between gap and wavelength? Why it is like that?

[@nicholasdsilva1832]

0:40

[@ahmedibrahim-qg3nq]

@@nicholasdsilva1832 excuse me it is clear that diffraction is greater when the slit size is near to the wave length but how is that expained ?

[@jackwilliams4188]

@@ahmedibrahim-qg3nq i'm also confused about this, is some of the wave reflected under this condition...?

[@windrises9996]

@@jackwilliams4188 Remember the Huygens's Principle - each point on the wavefront act as a new source of wave itself.

[@honey5854]

What if due to multiple points in the slit region, the waves interfere with each other destructively and only a small number of them are constructively interfered?

[@honey5854]

You're telling me he teaches this good without us paying him anything and then there's our teachers...

[@yeetusfeetus7877]

He is paid. Probably got a couple grand for this video.

[@Freepalestine_2008]

"Without us paying him"​@@yeetusfeetus7877

[@Isaac.Garcia]

Thank you, Mr. Bozeman

[@sasidharreddy2846]

you solved one of my biggest question that i have from past one weak.
thank you so much sir

[@prabhnoor_]

Great video.... really clear and thorough...thank you for clearing up a great and interesting concept

[@Matescium]

Can you please explain why does the wave diffract?

[@kamalasangiri7681]

man u r mind blowing ...small video but enough ti give an idea about what it is ....fantastic

[@minibutteranimation2160]

How on earth!!! My teachers used up all my pages to draw god knows what! N u just write down 4 words! N I understand EVERYTHING! THIS IS VERY VERY VERY HELPFUL!!!!

[@hirukudagama-br4bv]

super helpful even after 9yrs....thanks and Kudos

[@Raphi]

1:58 what you seem to be saying is that with a tiny enough slit in the wall, you will be able to see the light coming through it even when standing completely off to the side, adjacent to the wall.

[@buckyball2003]

Raphi Stein I think you’re right but it would have to be an incredibly tiny slit

[@litasmith2472]

Thank you for making it simple to understand.

[@عبداللهغالبمحمدالتكروري]

When i watch this i understand ...Thank you so much

[@SALMAABDULLAHMOHAMMADDAGAMSEH]

where was this channel from long time ago this is amazing explanation thank you so much that was helpful Iam an AS-LEVEL EDEXCLE STUDENT AND THIS HELPED VERY MUCH THANKYOU AGAIN

[@LeonardodosSantos-v5h]

Simple, yet very helpful!😊

[@jitendraitankar]

really helpful...great service to science learners...keep it up!!!

[@ShaggytheRodgers]

Very, very helpful man. Wikipedia has got nothing on you.

[@saramks3560]

Great video i really hated diffraction when i was at school thanks for the explanation

[@T9Unlimited]

Got a question how does the size of gap effect the amplitude

[@onlyanjan99]

Too good an explanation Sir. Very helpful. Thank you!

[@katyanogin6179]

just what needed...thanks

[@BulbaGaming8910]

Thanks
I have understood what is wave diffraction. You are genius

[@jonfklein]

Would also be helpful to understand the amplitude or intensity of the waves at different points around a corner or on the other side of a small opening.

[@brantleygrey696]

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I stupidly forgot the login password. I would love any tricks you can give me

[@arlodane2741]

@Brantley Grey Instablaster :)

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@Arlo Dane it worked and I finally got access to my account again. I'm so happy:D
Thank you so much, you really help me out!

[@arlodane2741]

@Brantley Grey You are welcome =)

[@voidofspace]

Great video for my Physics activity! Thanks

[@hansheinbuslon1880]

This video was helpful, thanks a lot!

[@manjunathareddy6237]

You just nailed it ! Awesome and thanks

[@google_pay283]

Noice Video. It may have been short but defiantly got the message threw.

[@mohammadaniyal]

wow nice work i totally clear with difractions thanks

[@CarolAnnEdie]

exactly the information I needed. Thank you!

[@thusharsankar6068]

This video helped me so much. Nicely explained

[@katerinarodova4098]

Thank you so much! Finally I understand it!!

[@alvarosanchez6510]

So good, now i ´m undestand about the photographic. Thanks.

[@jackieelder4290]

Thank you so much! This helps alot!

[@fiaTheFae]

Ohh so the diffraction is relative to the obstacles and openings! Meaning certain setups can eliminate any "(pen-/ant-)umbra" as it were! Very interesting.

[@kokoro9218]

Your videos are amazing thank you a lot

[@sharonsolana]

Yes, very helpful! Thank you!

[@marcioadames9956]

Amazing video. Very objective and clear. Thanks Bozeman.

[@gentarahardja9302]

Thank a lot Sir. Helpful.

[@frankm.c.5167]

Awesome video you explain it so clear

[@Aditya-f8t5z]

Thank you for making this video. 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

[@awesomegamer3318]

you are better than my teacher thx

[@itzaakjay3935]

Thanks for your videos , you should put the link of the PHET simulator to experience and play with it , seeing from Colombia

[@somethingisglowinganditsnotyou]

thank you, this is helping so much on my research

[@hudasalameh9137]

can someone please explain the relation of wavelength and the gap. It makes more sense if it was amplitude. im confused

[@KevinTwiner]

That was awsome!

[@SHADOWLEGENDDRAWS]

thx a lot sir, the video was very helpful.

[@dementiipankov1338]

Thanks! Very helpful for my physics class!

[@yasforthewin07]

thanks sir, it's very helpful

[@yumna2824]

Excellent explanation thanks a lot

[@wanngopang7382]

may i know is the degree of diffraction affects the amplitude also?

[@11oreos]

I think these curves in waves appear because the ends of each wave lose kinetic energy, therefore moving each part of the wave moves at different speeds.
Now, in the case of light, this still happens, but light doesn't bend. So what causes this.
Correct me please.

[@gail1246]

thank you, sir

[@shayhan6227]

What happens once diffraction grating is smaller than the wavelength?

[@gianettie5015]

I finally get this shit, thank you.

[@surprisegilman8197]

WONDERFUL VIDEO

[@IshaqKhan-ev8gq]

Thank you Sir

[@ЛинараИсабек]

can u briefly answer these questions plz
What is the diffraction? Whan the diffraction of the wave is not so noticeble? When circular motion occur?

[@sairafarooq6027]

Hello sir I have a question how would we know the wavelength? That the size of obstacle is of same as the wavelength I mean how would we know but visual representation?

[@Kaos-nn7rf]

My man Carl Fredricksen out here teaching straight facts yo

[@icarocoppio9821]

yes! that was really helpful.

[@alexhanssen2412]

you sir, are a god

[@reddredd7088]

Beautiful ! Thank you ! Very helpful

[@sunnyboy866]

Thanks for the video. That was helpful (Y)

[@dr.kareemdifar7348]

Good..
Thanks

[@aidangromek6838]

Great vid

[@UNKNOWN-fd5dk]

That was really really helpful ... Thanks ❤

[@arfanaveed7465]

It was really helpful

[@misssweethearted]

perfect!!!! Awesome video helped a lot :)

[@zugie3078]

May God bless u and your family generation👏

[@shadmansakib1652]

thank you sir

[@Melissa-sr7ni]

you're wonderful :) thank you!!!

[@louialigon6747]

Thank you vert Much !!!

[@omrano9663]

that was realy helpfull thank u sir

[@yasminadib]

thank you, you saved my physics degree

[@briodiz4772]

Wow I have learnt more in 4 minutes than reading through a physics book for twenty minnutes

[@ASTperi]

Hi , can you tell me what software you are using to superimpose your image with the explanation in the background?

[@linjiewang5653]

So helpful, love it!

[@BTae9293]

thank you

[@Christian-su7nr]

Why is wave diffraction important? Do we currently have a use for wave diffraction?

[@BaileyCarpenter-y7s]

excelent video. u r the best

[@passangwangdi5254]

what is the difference between diffraction produced by single slit and very small object?

[@schang_lh]

Sorry, this may be a dumb question, but can someone please explain to me why wave spreads out the end? like why doesn't it just stayed at the arce length as it move outward? Is it simply just how waves are?

[@genseek00]

Dumb questions do not exist, is my belief.
You mean why doesn't it move in a straight line, right? Good question. An even better would be: why does it move in a straight line. Because why would a wave behave like a ray? Think of the wave as a result of interference between all parts of the wavefront at any previous moment in time and you will get the answer to your question.

[@subashtamang8255]

this was very good.

[@aizasheeraz3046]

Perfect

[@MrLofey]

U r the best, thank u
king regards

[@supersonic174]

doesn't actually explain why the waves diffract.

[@williamlowry6492]

Yes. I'd like someone to explain that to me. It wasn't clear in physics class, and it isn't clear in this video.

[@mmehana]

Waves cannot particularly pass through a solid object, its like you putting water bucket ontop of your head , the water doesn't go through you, it goes around you. This is why the waves are taking every route they can (the gaps) so the smaller the gap, the larger the rate of diffraction as its much tighter than therefore diffraction is much tighter, hope this helps, hfhf!

[@supersonic174]

no, that's not true that the smaller the gap the more diffraction there is. When the gap is the same size as the wavelength is where the diffraction is largest, anything smaller or bigger is going to have reduced diffraction

[@simsim2159]

Aweri Blakely there might be some calculations but i need to clear it practically

[@simsim2159]

diffraction is just a bending of light. furthermore it shows light do not travel in straight line ..if it would have it would have passed straight from the slit instead of making those curvy waves

[@ikshvakugarg3154]

Really helpfull nice video

[@camillepeterson4412]

Thank you for your videos! You're awesome and always clear up questions that I have. :)

[@cgplayz545]

Thank You!!!

[@SidneyPratt]

Thanks.

[@sumsum9017]

Does the material that the obstacle is made of affect the diffraction or just the opening size?

[@sylviachoi9494]

thank you very MUCH!

[@tjtalksrandom5789]

Thanks a lot

[@abirislam2879]

Yes!
It was!!

[@nisargpatel7069]

tnx sir [ also tnx mr hay ]