Constructive and Destructive interference | Physics | Khan Academy

[@VipulPatel-mf3yl]

I did undestand in 13 min which i was not able to understand whole year

[@gpurkeljc]

When two waves are half a wavelength out of phase we get the silence of the lambdas. 😎

[@samyukthasrikanth4214]

Okay I laughed. That was clever 😂

[@onyiturner5345]

Gold!

[@zigzag8338]

nice

[@IsrarKhan-kb9hs]

What does it mean?

[@nevgongivuup]

​@@IsrarKhan-kb9hs it's a play on Silence of the lambs

[@l.fsader6021]

When someone is changing phases in life, what was once constructive becomes destructive. and then it becomes constructive. and then destructive. and the.... but the wave is always the wave. ya feel me. lol

[@marcus3161]

bruh u must've been baked when u wrote this comment lmao

[@starrynight1601]

Lol😂

[@roseoid9672]

@@marcus3161 You'd be so goddamned correct

[@pHocusKeeperzEdutainment]

An Elder just broke it down to me the other day that why I’m here!!

[@ZelForShort]

This is the best thing I've learned all week ily

[@ujjwalnegi8259]

Khan Academy always expresses better

[@mvl3713]

If only KZbin was around in highschool. Great style of teaching

[@justdoit143]

Second time, it becomes suprisingly understandable

[@soumyagangwar824]

Indeed 🤣

[@ronniesawyer]

Thank you so much khan academy. This style of slower teaching really helps.

[@elesia610]

one of the best video on youtube to explain this concept

[@mystery_1155]

Thank you, David ♥

[@diyadahal5384]

100 million dollar worth video

[@sabakanwal7801]

Jazak Allah u r a lifesaver

[@electrotoxins]

Thanking God for translating technology to let me read this beautiful comment

[@401ammarfarooqui4]

WOW! Concept Clarity to the next level.

[@Gaurir5]

Most wonderful explanation... Loved it

[@Essahwarlord]

what software is that to draw waves in layers and bring layers back and forth?

[@IsrarKhan-kb9hs]

Aahhhh this is heaven the best video i have found till now i m soo thankful i found this channel ur concept is hats offf no words brilliantly awesome

[@barcanewgen4431]

Thanks for creating this video. God bless you

[@marisacasciola7287]

This helped soooo much. I tried reading my textbook and it still couldn't explain this concept to me very well.....

[@cristianaguilar8445]

Hey sir thanks, Im from mexico and this is a very clear explanation! God bless you!

[@m44rk]

thank you so grateful for your help u are helping many students out ❤

[@homegardening2766]

OMG,2 HOURS AND 5 MINS!👌

[@maheshanand1580]

Very Clear explanation...thank you

[@obsessedforgoal2455]

no words to explain your skills and concept of physics whenever i stuck i come to @khan academy

[@CaseyRedDragon]

What happens to the energy during Destructive interference with the Law of Conservation of Energy?

[@bobnavonvictorsteyn9017]

CaseyRedDragon This is a very good question. Just commenting so I also get a notification if anyone answers

[@shanivaar1671]

energy is only redistributed...if it reduces in one area due to destructive interference forming a dark spot then that energy is compensated for in another area as a bright spot by constructive interference...look up young's double slit experiment

[@nidhikushwaha8481]

wowww difference between constructer and destructer is in very easy language👍👏👏👏👌👌👌

[@TomHendricksMusea]

Consider electron wave and positron wave are the same but out of phase. So there is only one charge that can either be constructive, same charge, or destructive, different charge.... more to follow

[@rich1051414]

This is why 2 notes which are not the same sounds like 'wah wah wah', because the wave length of one is not divisible by the other so one wave will continuously move in and out of phase of the other other.

[@dhimahimehta9815]

Very much helpful....Thanks a lot

[@nehamahato4106]

This was so so good. Thank you🤍

[@bixstar1469]

I finally found it, thank u KA

[@dilomine1352]

Does this apply to electromagnetic waves aswell?

[@trigobrooken6260]

yes!

[@shivensaini3643]

Yes, it is valid in wave optics

[@perceptionshare2248]

Great video. Thank you for sharing your perception.

[@MenahilMustafa]

I enjoyed the lecture and understood , I love this. Imma subscribe.

[@moonknight9054]

AMAZING VIDEO!

[@kpoli7494]

immense thanks for clearing the concept

[@beenarajan9982]

Brilliant explanation sir....thank you

[@adheenadev7403]

so good. thank you❤

[@sasikalamuthusamy2385]

Marvelous teaching keep uploading 💥

[@Giggleshub01]

Thanks for the info.that was very useful to us.

[@humeras3359]

Excellent ❤️

[@nidhikushwaha8481]

thanks avanish

[@practicalcentre1840]

I have to ask a question that same is gonna be happen with compressions and rarefactions cuz sound waves are longitudinal.

[@muznatrendyfashion]

My qtn is that destructive interference occur when they are out of phase.....but u gave the condition of interference with in phase

[@alimukhtar4759]

Thanks David. 😊

[@grucy953]

thank you worth watching

[@shrutirathore6000]

Superrrrrbb keep doing

[@muhaivlogs8997]

thanks bro

[@hilariousentertainer8197]

In which case constructive and destructive waves are formed? What is the reason to form two types of waves ?

[@biyanpertin7655]

Thank you this really helped🙏❤️

[@juanfelipe8484]

What software is he using for the drawings?

[@mspasstime9284]

Thanku so much🎉🥰

[@vikramjoshi3452]

This a soooo great🙌🏼

[@reysm1522]

Does this apply to wifi signals? More waves more energy per cycle?

[@fernandohood5542]

What if i have a transmitter and receiver at one end and a reflector at the other. What will the reciever see as the reflector is brought closer?

[@mackenzievick1736]

thank you david

[@awsomecube0078]

This is awesome 👏

[@HongyiGao]

can light be the constructive wave or destructive wave ?

[@mehdiali5794]

Nice explanation

[@arunlohi7377]

Damn that was nicee 👍

[@yunglilschillymane261]

Lets say we have a light bulb that emits one wavelength of red light. Since this is not a laser it will not produce coherent light and all the photons emitted have a random phase( i think). Will this red lightsource now be dimmed by its own random phase photons that on average cancel eachother out due to destructive interference? and if this is the case does this also happen in our traditional lightbulps with lots of wavelengths? and if not why?

[@dddd2319]

Thank you Jesus for this man

[@ysx2030]

Brilliant !!!!!

[@kshjnbvsmd]

thank you

[@muqrisalmardi1791]

Thank you so much

[@SuperSalazar94]

What about 2 paths for one source?

[@muhammadfaheem910]

Thanks sir .....i lerned very much from this video ...i m from Pakistan

[@muhammadfaheem910]

@@aliaomer8298 sorry i couldn't understand you.....what dou you want to say.. plz....

[@quriositysquared1028]

This is amazing

[@shahadjabiti1645]

Thank you 😊

[@najmuschowdhury1766]

amazing

[@Misada678]

i have a difficult examen thank you please everyone wish me luck

[@VipulPatel-mf3yl]

I have today

[@Misada678]

THE SHIELD X u can do this ☺️

[@VipulPatel-mf3yl]

@@Misada678 ty for wishes

[@swetachoudhary987]

Best video

[@saragreen1143]

bless y'all

[@jaewonchoi1168]

Y'all ma hero

[@frankivinstutoring3775]

Can anyone explain what happens to the ENERGY of two waves if they are perfectly destructive? It seems as though energy is destroyed, but this doesn't seem possible.

[@qiuk5988]

what if source 2 creates a wave with smaller amplitude but same wavelength, when is it in phase or out of phase

[@qiuk5988]

and do they have to line up perfectly together to get const and dest? or it depends on which one will be closer

[@pdfgovardhanb8093]

nice

[@cadcamsystems]

good

[@joshijoshi5669]

nice video

[@thomasgraham3445]

This is too lit

[@lemon-vy3mj]

Me: Opens Video Also Me : Why the heck is the voice different Isn’t THIS KHAN Academy?! Me Again: oh wow I’m dumb -,-

[@shukfahid]

FOUNDATIONAL!

[@injourney7147]

thank u so much sir : )

[@mystoryinrhyme5683]

Peak to valley or antinode and node=1/4 wavelenght i thought

[@thescratchsavy1587]

Is this somehow related to resonance?

[@vidhuuu7413]

First time I understood what the hell this actually meant .

[@michaelschuler7397]

Can this happen with microwaves

[@hackeroo13]

Why not?

[@abrarazad1571]

That ear tho

[@hackeroo13]

Isn't a wavelength: one crest + one trough

[@ezzeldin3714]

I think so

[@akaBaye]

I​ thought destructive interference was superposition. ?

[@Chromedesu444]

the concept of constructive/destructive INT, is under the umbrella of superposition

[@destadoda]

nc

[@joshuawall6265]

Where is SAL????

[@epenmedi]

wer PI shifted

[@epenmedi]

includes destructive interference

[@epenmedi]

at least two wave bands were at curves where tan=0 have a 180 rotation.

[@Lt.muhammad]

طالب سادس زيروغيمس جلقم بلكم بلمم

[@kusumsharma5195]

:-)

[@004_sreelemonchandramohont9]

presentation is not good so speed talk ... and unnecessary talk is too much presentation should be slow because this video is watching over the world

[@shanetrompeter]

This guy knows nothing about how noise cancelling of sound waves. He was showing for noise cancelling is a standing wave then his constructive wave is a is a harmonic wave. Then when he inverted the wave that is noise cancelling. he really has never done any work in a true sound wave lad. The car companies I work for as a sound engineer know what those waves do and how waves really work. Then a destructive wave means a harmonic that can destroy things a vibration that breaks something. (THANKS FOR MISINFORMING PEOPLE)

[@gomathinaayagam7941]

shane q please explain how sire

[@piurexroa]

Man shut up

[@asdfkjhlk34]

Lollll I hope you’re joking

[@AirdropFinder1]

Is it true .

[@neh1234]

Tell that to sound engineers. For the rest of us who just need to pass physics class, this is enough.

[@MrWolfchamp-xi3cu]

This isn't helpful at all. He didn't even give any good physical example. Just lines on a screen. The sound cancelling headphones isn't a good example since you can't see sound. He should have showed two water waves.

[@TomHendricksMusea]

Consider electron wave and positron wave are the same but out of phase. So there is only one charge that can either be constructive, same charge, or destructive, different charge.... more to follow.

[@madjedabouhadjar2640]

THANK YOU SO MUCH