Dear Sir, that's called a good explanation. I've watched many videos regarding the true definition of wavefront and so far this is the best. Thank you .
So between one crest and the other the number of wavefronts is infinite .. This is the best illustration I've found on wavefront. They're all so confused and confusing. Thanks a lot.
Saved my life, tomorrow is my physics final, just hoping I pass that damn exam cuz it absolutely drained my energy. Thank you, this really helped me cover 2 lessons 💕🫶🏻
Thank you, this really helped for my end of year exam but I have one question; what actually is the wave front. Is it the line that goes through the troughs or is it when all the troughs are in unison?
The wavefront is just an indication of a common point on the wave. As an example, if you were looking down at waves in the ocean, you could draw wavefronts at the highest point of the water (which would probably be parallel to the beach) or the lowest point in the water, or any other chosen height of the wave.
This is perhaps a silly question, but can I ask how big a wavefront is? I'm not a physicist but I've recently taken an interest in optical physics as a hobby after I got diagnosed with short sightedness. This question is driving me a little bit insane because I can't seem to find an answer anywhere. I'm writing a Python program to simulate how human eyes see things when given a glasses prescription. So far I can calculate the Wavefront using Zernike Polynomials and then turn that into a Point Spread Function. I have no idea how large the Wavefront or PSF should be though. I've made no progress in weeks and I'm really disappointed. Let's say I have a thin lens of 4 mm in radius and it is imaging a photo 2 meters away. How big would the wavefront be at the photo? Would the wavefront have the same radius as the lens (4 mm)? Or would the wavefront become bigger since it has traveled 2 meters away? If it has become bigger is there an equation to figure out how big it has become? This is the one thing stopping me from being able to convolve the PSF with the image but it won't work since I don't know the scale. I must have looked at dozens of online textbooks at this point trying to figure it out. Of course if the Wavefront is too big then the PSF will be too big as well and blur the image too much. If the Wavefront is too small then the PSF will also be too small and not blur the image enough. I think it would be really cool to simulate how my vision is affected by aberrations vs how my friends are affected by theirs.
@@AndyMasley Thanks, well I mostly dont understand the main use of a wavefront and what exactly it is. Like for example the Amplitude measures the distance from the mid point to a peak, something like that.
@@sasukeofthesharingan7349 The reason we draw wavefronts is that we want to see how a wave's behaving as a whole, if that makes sense, and we want to know where constructive and destructive interference is happening on the surface with the wave on it. If we didn't use wavefronts, we wouldn't have a way of representing a 2-dimensional surface with waves on it and how they're affecting each other.
This is my first ever comment! Your lectures actually make physics meaningful ! If only all physics teachers would teach that way ...
Thanks so much! So happy to hear they've been helpful
Dear Sir, that's called a good explanation. I've watched many videos regarding the true definition of wavefront and so far this is the best. Thank you .
cheers mate was searching all over for a good explanation of what a wavefront was (this video explained it clearly), go well in life
WONDERFUL EXPLANATION! HATS OFF! TYSM DEAR SIR.
So between one crest and the other the number of wavefronts is infinite .. This is the best illustration I've found on wavefront. They're all so confused and confusing. Thanks a lot.
Saved my life, tomorrow is my physics final, just hoping I pass that damn exam cuz it absolutely drained my energy. Thank you, this really helped me cover 2 lessons 💕🫶🏻
finally a better explanation in whole youtube
Amazing video. Finally helped me understand all the concepts for my test. Thanks a lot
All of my concepts have been cleared. Thank you very much sir!
doing gods work
Thank your sir, now I understand what a wavefront is
Very helpful 👍🏻
THANK YOU.
So helpful, thank you!
I had never seen the way u have explained wavefront 👍
This is fantastic!
So helpful , my concepts are clear 👍🏻😊
wow this vdo means a lot to me
Thank you , very helpful
U, my sir, are a GOD
I say this all the time
Thank you for this 🎉❤😊
Very helpful 👍
Very good explanation 🙂
Solid video
OKKKKK U ATE WITH THIS!!!!!
Omg thank u fam 😭
@@AndyMasley the friendly Canadian monopoly couldn't have been ended without you. ✊ 🍁 🛑.
@@kiramurph8873 🇺🇸🦅😎
Thank you a lot
Thank you, this really helped for my end of year exam but I have one question; what actually is the wave front. Is it the line that goes through the troughs or is it when all the troughs are in unison?
The wavefront is just an indication of a common point on the wave. As an example, if you were looking down at waves in the ocean, you could draw wavefronts at the highest point of the water (which would probably be parallel to the beach) or the lowest point in the water, or any other chosen height of the wave.
@@AndyMasley oh right okay thank you
This is perhaps a silly question, but can I ask how big a wavefront is?
I'm not a physicist but I've recently taken an interest in optical physics as a hobby after I got diagnosed with short sightedness. This question is driving me a little bit insane because I can't seem to find an answer anywhere.
I'm writing a Python program to simulate how human eyes see things when given a glasses prescription. So far I can calculate the Wavefront using Zernike Polynomials and then turn that into a Point Spread Function. I have no idea how large the Wavefront or PSF should be though. I've made no progress in weeks and I'm really disappointed.
Let's say I have a thin lens of 4 mm in radius and it is imaging a photo 2 meters away. How big would the wavefront be at the photo? Would the wavefront have the same radius as the lens (4 mm)? Or would the wavefront become bigger since it has traveled 2 meters away? If it has become bigger is there an equation to figure out how big it has become?
This is the one thing stopping me from being able to convolve the PSF with the image but it won't work since I don't know the scale. I must have looked at dozens of online textbooks at this point trying to figure it out. Of course if the Wavefront is too big then the PSF will be too big as well and blur the image too much. If the Wavefront is too small then the PSF will also be too small and not blur the image enough.
I think it would be really cool to simulate how my vision is affected by aberrations vs how my friends are affected by theirs.
Hey...is that clip from the channel Veritasium? Cool thanks for the vid
It is yeah! Borrowed the clip in gif form
Im still not sure if i get it, but either way it did help me, kinda
Happy to answer any questions here
@@AndyMasley Thanks, well I mostly dont understand the main use of a wavefront and what exactly it is. Like for example the Amplitude measures the distance from the mid point to a peak, something like that.
@@sasukeofthesharingan7349 The reason we draw wavefronts is that we want to see how a wave's behaving as a whole, if that makes sense, and we want to know where constructive and destructive interference is happening on the surface with the wave on it. If we didn't use wavefronts, we wouldn't have a way of representing a 2-dimensional surface with waves on it and how they're affecting each other.
@@AndyMasley OHHHHHH, now i get it, thanks alot :)