Constructive and Destructive interference | Physics | Khan Academy
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- čas přidán 20. 06. 2024
- In this video David explains what constructive and destructive interference means as well as how path length differences and pi shifts affect the interference. Created by David SantoPietro.
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I did undestand in 13 min which i was not able to understand whole year
When two waves are half a wavelength out of phase we get the silence of the lambdas. 😎
Okay I laughed. That was clever 😂
Gold!
nice
What does it mean?
@@IsrarKhan-kb9hs it's a play on Silence of the lambs
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
bruh u must've been baked when u wrote this comment lmao
Lol😂
@@marcus3161 You'd be so goddamned correct
An Elder just broke it down to me the other day that why I’m here!!
Second time, it becomes suprisingly understandable
Indeed 🤣
If only CZcams was around in highschool. Great style of teaching
Khan Academy always expresses better
This is the best thing I've learned all week ily
Most wonderful explanation... Loved it
Thank you, David ♥
Thank you so much khan academy. This style of slower teaching really helps.
Great video. Thank you for sharing your perception.
WOW! Concept Clarity to the next level.
Very Clear explanation...thank you
This helped soooo much. I tried reading my textbook and it still couldn't explain this concept to me very well.....
Jazak Allah u r a lifesaver
Thanking God for translating technology to let me read this beautiful comment
one of the best video on youtube to explain this concept
Brilliant explanation sir....thank you
I finally found it, thank u KA
Thanks for the info.that was very useful to us.
Very Very Understanding Concept! :) Great video!
Marvelous teaching keep uploading 💥
This was so so good. Thank you🤍
Hey sir thanks, Im from mexico and this is a very clear explanation! God bless you!
I enjoyed the lecture and understood , I love this. Imma subscribe.
Very much helpful....Thanks a lot
immense thanks for clearing the concept
thank you so grateful for your help u are helping many students out ❤
no words to explain your skills and concept of physics whenever i stuck i come to @khan academy
OMG,2 HOURS AND 5 MINS!👌
This a soooo great🙌🏼
AMAZING VIDEO!
so good. thank you❤
Thank you this really helped🙏❤️
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
100 million dollar worth video
Genius, i finally understand this 👏
wowww difference between constructer and destructer is in very easy language👍👏👏👏👌👌👌
what software is that to draw waves in layers and bring layers back and forth?
Nice explanation
This is amazing
Excellent ❤️
Thanks David. 😊
Brilliant !!!!!
thank you david
Superrrrrbb keep doing
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.
thank you worth watching
thanks bro
This is awesome 👏
Thank you 😊
thanks avanish
Thank you so much
Damn that was nicee 👍
Thanku so much🎉🥰
nice video
thank you
amazing
Best video
Y'all ma hero
My qtn is that destructive interference occur when they are out of phase.....but u gave the condition of interference with in phase
good
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.
nice
This is too lit
bless y'all
What happens to the energy during Destructive interference with the Law of Conservation of Energy?
CaseyRedDragon
This is a very good question. Just commenting so I also get a notification if anyone answers
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
I have to ask a question that same is gonna be happen with compressions and rarefactions cuz sound waves are longitudinal.
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?
What software is he using for the drawings?
In which case constructive and destructive waves are formed? What is the reason to form two types of waves ?
Does this apply to electromagnetic waves aswell?
yes!
Yes, it is valid in wave optics
Does this apply to wifi signals? More waves more energy per cycle?
Thank you Jesus for this man
FOUNDATIONAL!
thank u so much sir : )
What about 2 paths for one source?
can light be the constructive wave or destructive wave ?
i have a difficult examen thank you please everyone wish me luck
I have today
THE SHIELD X u can do this ☺️
@@Misada678 ty for wishes
Thanks sir .....i lerned very much from this video ...i m from Pakistan
@@aliaomer8298 sorry i couldn't understand you.....what dou you want to say.. plz....
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?
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.
what if source 2 creates a wave with smaller amplitude but same wavelength, when is it in phase or out of phase
and do they have to line up perfectly together to get const and dest? or it depends on which one will be closer
Peak to valley or antinode and node=1/4 wavelenght i thought
nc
Me: Opens Video
Also Me : Why the heck is the voice different Isn’t THIS KHAN Academy?!
Me Again: oh wow I’m dumb -,-
Is this somehow related to resonance?
That ear tho
Can this happen with microwaves
Why not?
I thought destructive interference was superposition. ?
the concept of constructive/destructive INT, is under the umbrella of superposition
Isn't a wavelength: one crest + one trough
I think so
Where is SAL????
:-)
طالب سادس زيروغيمس جلقم بلكم بلمم
wer PI shifted
includes destructive interference
at least two wave bands were at curves where tan=0 have a 180 rotation.
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
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)
shane q please explain how sire
Man shut up
Lollll I hope you’re joking
Is it true .
Tell that to sound engineers. For the rest of us who just need to pass physics class, this is enough.
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.
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