Constructive and Destructive interference | Physics | Khan Academy

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.

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.

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[VipulPatel-mfyl]

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. 😎

[l.fsader]

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

[ZelForShort]

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

[justdoit]

Second time, it becomes suprisingly understandable

[mvl]

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

[marisacasciola]

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

[elesia]

one of the best video on youtube to explain this concept

[ronniesawyer]

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

[mrk]

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

[IsrarKhan-kbhs]

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

[ammarfarooqui]

WOW! Concept Clarity to the next level.

[cristianaguilar]

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

[Gaurir]

Most wonderful explanation... Loved it

[Essahwarlord]

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

[nidhikushwaha]

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

[obsessedforgoal]

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

[kpoli]

immense thanks for clearing the concept

[rich]

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.

[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.