Physics - Optics: Single Slit Diffraction (1 of 15) Basics

[@duduzenkie3242]

I'm from Malaysia. You're indeed a life saver 🙌 ❤

[@MichelvanBiezen]

Welcome to the channel!

[@drhf1214]

i always watch your videos but barely comment but i want you to know that i am very thankful for these! you're helping me get through college physics for my engineering major :)

[@hinokikuaimu]

you could donate a small amount on his website for the help :)

[@manniman82]

You are a gem sir. I was having difficulty understanding why the beams cancelled out by reading my textbook but you made it so clear with the triangles. I already understood those same triangles in the double slit interference but I didn't know what the book meant that the beams ''cancel with the beams below'' when explaining diffraction... but you made it clear in this and especially in the next video in the series. Thank you!

[@MichelvanBiezen]

Thank you for the comment. We are glad we were able to help.

[@galuhfathurahman9545]

better than my real lecturer.. help me a lot sir..

[@nightteen5230]

I love the way how you explain complicated things so easyily and understandable....keep up the great job 👏👏

[@MichelvanBiezen]

I appreciate your comment 🙂

[@dumby7614]

HAHAHAHAHA You made me laugh in the beginning

[@nandugupta7159]

Us moment

[@SHREYA_GIRI]

sir, thank you very much for your videos. they are just so straight forward and you make things clear and simple. Any doubt i have in any topic of physics, i watch only your videos. Thank you very much!!!!

[@nandugupta7159]

Helpful... Sir love from India

[@MichelvanBiezen]

Thank you and welcome to the channel!

[@fatitankeris6327]

I have heard that the wave is made up of smaller "elementary waves" or so, and that you can imagine the wave at the slit as if there were many waves going in all directions. Could you please explain what you know about this concept, because I still can't understand how the beam interacts with itself at the slit, and how those "elementary waves" go in all directions on the slit, but not somewhere else...

[@chathrapathinikhilkandagat7728]

thanks sir i understood the top i watched the video of yours in which you explained 1st max,min,how they r formed in that topic this is present sir.I once again say thank u sir

[@shivampundir3226]

Will the use of multiple slits in this experiment not lead to interference?(if the source is coherent)or will there be both?

[@valeriereid2337]

Excellent introduction. Thank you.

[@MichelvanBiezen]

You are welcome!

[@marcoweissmuller8563]

Throughout the last century, it was great importance to know if the photon's motion is like a wave or like a particle's motion. Saleh Theory give a coherent answer to this question on SALEH THEORY's Video: A Revolution in Light Theory

[@blessos]

We don't get interference fringes with a single slit if using water waves though do we? Or sound waves?

[@MichelvanBiezen]

Only diffraction from a single slit. You need more than 1 slit to have interference.

[@blessos]

@@MichelvanBiezen I think this is a bit of semantics tbh. But ok, replace the word interference with diffraction and I still have the same question. I meant the appearance of bright and dark fringes. Does this happen with water and sound too or just light?

[@MichelvanBiezen]

Diffraction and interference are NOT synonymous. But to answer your question, yes, this happens with water and sound as well

[@blessos]

@@MichelvanBiezen Other than the fact that the word interference is associated with more than one slit explain the qualitative difference between the two words that renders using them synonymously inappropriate. I don't think there is one. An interference pattern exists for one slit whether you like it or not. Ok diffraction means the spreading out of the wave when passing a slit or aperture too. But the disagreement was specifically to do with the two words association with the word "interference". I still see no reason why they cannot both be used here.

[@MichelvanBiezen]

In order to have an interference pattern, you need two sources of monochromatic light. (double slit). Each individual slit will also show a diffraction pattern, such that the diffraction pattern will be superimposed on the interference pattern. There are dozens of videos on this channel explaining that.

[@jilhabermacher]

The beginning was so wholesome

[@MichelvanBiezen]

We don't always get it right on the first try. 🙂

[@thohuynh8701]

very nice lecture, Mr Professor :), thank you

[@MichelvanBiezen]

Tho Huynh It is great that students from as far away as Vietnam watch these videos. Welcome to the channel.

[@sammalik6355]

Why does spherical wavefront not move in backward direction??

[@MichelvanBiezen]

A wavefront will move away from the source in all directions (if nothing obstructs the path). Once it moves through a slit, it will continue in that direction.

[@A2139-d6k]

thank you for these videos sir, I don't know if I missed an episode but where do you get the formula of intensity for the central maximum in a single slit from? Thank you :)

[@MichelvanBiezen]

Usually the intensity of the central maximum is written as Io, which has no specific value, since it depends on the intensity of the incoming light.

[@sunitasingh-rk2jk]

When two wavelength fall simultaneously on slit then at what angle only one of those find on screen. Sir please explain for single slit diffraction pattern

[@MichelvanBiezen]

Each wavelength will form its own diffraction pattern.

[@jonathanwyllie2477]

When we analyze double slit diffraction, we use an equation that relates the spots where it constructively interferes. But when we do single slit, we look at a spot where it destructively interferes. Why is this?

[@MichelvanBiezen]

With a single slit we are dealing with diffraction. With a double slit we are dealing with interference. These are 2 different phenomena.

[@hillary7149]

Do you discuss Fraunhofer diffraction?

[@MichelvanBiezen]

No, we haven't covered that yet.

[@wardakhan1328]

Really helpful sir thank you !!

[@thesquix6060]

Micheal why the diffraction pattern and the intereference pattern are different?

[@MichelvanBiezen]

Interference occurs when light passes through 2 slits and then comes together. Diffraction occurs when light passes through a single narrow slit.

[@12345mmmmas]

Love ur innocent smile 💜

[@azizkash286]

I love you soo much!

[@taosongyun4464]

Help me A lot!

[@supergr8boy]

Hahah, the first 15 seconds though!

[@niloofarfam4294]

thank you SO MUCH!!!

[@nikhilsingh1333]

Thank you sir

[@MichelvanBiezen]

Welcome

[@chabotaluputa7665]

First 12 seconds😂💪

[@MichelvanBiezen]

They were making me laugh....... 🙂

[@chathrapathinikhilkandagat7728]

sir I'm sorry to say this but i still dont understand please exlain briefly about it in another video clearly

[@MichelvanBiezen]

There are many videos about that topic in the playlist.

[@ferdinandsd.abelgas3918]

hahahahahha

[@MichelvanBiezen]

Yup, it doesn't always go as planned...... 🙂

[@waltercarrillo6065]

🤣🤣🤣