Simply Magnificent, during classes of Physics and Science I paid little to no attention due to my lack of sleep and teachers that lacked the enthusiasm to help me find the passion for it but this video just hits the dopamine for information collected online
WOW ... This is explained so nicely and clearly ! I wish I had access to this growing up, the confusing math and physics and science could have been really awesome and fun sessions ... I guess the kids today are lucky in that sense ... Keep up the great work and thanks
Great content. Really don't understand why more people don't watch this stuff. You never really completely understand science at high school level and I for one really need these kinda videos to help. Thanks man
Thank you so much! All of the other videos immediately jump into the formulas and the others doesn't even scratch the surface of refraction. This video helped me so much. Thank you! I do hope you make a video about the laws of refraction soon. I really love the way you explained this. Thank you again!
I didn’t understand this in school but thank you for this video! It helped me understand way better and now I think I’ll be fine in the test I have coming up soon.
Woah this is too good! Thank you so much!!!! The best video on this subject so far, a comprehensive, and well-explained introduction with amazing animation! Absolutely brilliant! Thank you for all that you do, it is very much appreciated. Got that "ah, I see!" moment finally.
For the ones curious, I leave here a explanation of why refraction happens: (It can be explained as a consequence of conservation of momentum of photons) If in medium 1 the index of refraction is n1 and in medium 2 the index of refraction is n2 and for the definition of index of refractions and wavelength we have: n1 = c / v1 , v1 = λ1 * f n2 = c / v2 , v2 = λ2 * f Dividing the above equations we obtain: n2 / n1 = λ1 /λ2 So if n2 is higher than n1, the wavelength in medium 2 is smaller than in medium 1. Now because the photon momentum is: p = h / λ Applying the conservation of momentum of the incident and transmitted photon along the parallel line of medium separation: p1 = p2 → h/λ1 *sin(θ1) = h/λ2 *sin(θ2) → n1 *sin(θ1) = n2 *sin(θ2) This is the Snell Law!! So the light bending is just a consequence of the conservation of momentum of photons!
So does this mean refraction is a form of diffraction, where a wavefront pivots around an object (in this case, the material interface)? What's a good way to picture how this wavefront looks then? I guess maybe if we think about a wavefront impacting a surface at an angle, the first part of the wavefront to impact will 'stop' and allow different phases of the wave to 'catch up' further down the surface; so it appears that the direction of propagation of the lines of the waves becomes more normal to the surface, and constructive/destructive interference basically recreates the waves inside the material as if they had all entered from this more-normal angle. so the angle of refraction is 'how far back' in the wave phase the difference in arrival times at the surface causes the wave front to be out of phase
A great video, really well explained and demonstrated through the animations etc. Lots of key knowledge shown simply and effectively - I'm using it with my Y6 class in science tomorrow!
This was extremely informative until i saw the ending where you used a focal lense and the middle ray of light (indicent Ray) exited the same path as the incident ray but was the emergent ray why is that.
this was so helpful and in school they just dont teach it this way.have you ever considered teaching or taking classes by any chance? i think you could really help other people understand too
Do this tells me that light rays have a thickness.. cause one end of a light way must enter the new medium first then the other ends follow. How thick is a light ray?
Ok, I'm sorry to disappoint but I wasn't sent by my physics teacher. I'm studying for exams and found this video that turned out to be extremely helpful, like REALLY helpful. So yea just wanted to say thx.
(this paragraph was added in the edit) I wrote a lot more text than I intended. Sorry to anyone who decides to read it all. 1:46 This image just doesn't make any sense. It's a wave. Not a car. It only has one 'point of contact' with the world. So one side can't enter faster than the other side, cause there is no other side. Please tell me why I'm wrong. I know I'm wrong, but the video does not explain why, and I don't know why. 2:02 This also doesn't quite make sense. In the image, the light appears to continue on it's path, before scattering and moving towards where the it should be, according to you. You say one thing, but the footage shows something completely different. I am getting more and more frustrated the more videos I watch. I just want to understand how it works, but noone explains it in a way that consistent with itself. I must conclude that at least one of the following are true: 1: I lack some basic information about how light works, that everyone else watching is assumed to already know. 2: Everyone is just content with not really understanding how it works. 3: The topic is in actuality far more complex, necessitating a simpler way of thinking about it, and this video explains the simpler way. 4: Something I haven't thought of and mentioned. Maybe I should contact someone who knows, so I can ask them questions about this instead of looking it up, cause looking it up only gives the widely accepted explanations, that doesn't make sense to me. 3:59 That is nonsense again! You take two points on the pencil, and draw parallel lines, that exit the water at the same angle, but they don't end up at the same point. So those lines are different perspectives. The thing showing what the pencil would appear as, is not what is would appear as from one point of view. It is what it would appear as from a range of points of view. I want to reiterate that I just want to learn what's right, and I expect that I am wrong. I am presenting how I understand it so someone who knows what is right can more easily spot which part of what I am saying is wrong. 4:43 And yes, we do see from a range of perspectives because the eye has a lense. But that lense does not have the diameter of half a pencil, so at best, that increases the margin of error for observational proof. Also, I am almost certain that the light in the eye, doesn't hit such a tiny area. I did some googling, but googling rarely helps, cause everything I could find in the amount of time I felt would be worth spending on looking it up was either simplified or expects the reader/viewer to have a had a lot of education on the subject already. I want to mention that I want to know this, in part, out of curiosity, and in part because I think it would be relevant for a personal project I'm working on. Every time I try to learn something even slightly complex, I just get dissapointed, and lose another bit of my remaining trust in education. I have More motivation to learn this stuff than 90% of the people seeking out this information, but the information has been made to fit that 90% of people who will only ever use that information to pass some test. I wrote this shortly after waking up, so I was a little tired, which makes it more likely that I missed something. I really hope that I did miss something, and that I'm wrong, and that education is not actually as disappointing as it appears to be to me right now.
But I thought that light always traveled at the speed of light. I thought that was an intrinsic property of light, that photons only can move at light speed. Or is that totally wrong?
Hey Sir, Can you tell me the name of the song in the background. Sorry if it isn't related to the wonderful explanation u said :). Also my mum loved it. She said I could learn from it XD. Its true tho :P.
Wasn't this theory for why light bends in glass, water, etc debunked in videos by Fermilabs and others before this video was published? I guess this theory has the advantage of being easier to understand than perpendicular electric fields and Maxwell's equations. My understanding of the topic is limited, but light bending seems to be related to different resistances of electrical fields generated as light passes through different mediums.
3:55 does that means light refraction is only perceived by living beings? You say it as if the illusion was produced by our brains assuming incorrectly where light is suppose to be
The illusion that the pen is broken is produced by our brains. The fact that the light has been bent is not an illusion. Any organism that can see the straw would see the same broken illusion.
I see these.. but no one ever since explains ehat happens if you open up the angle of incidence.. what affect that has on the refracted ray? Is it always the same? Does that angle change with material?
You keep saying that the light slows down, anf while I understand what you are explaining, I am confused, as in school we are taught, that the speed of light is not changable. Can you explain this to me please?
Speechless. 50% of my physics class in 4 minutes! Great job explaining!!!!!! Woooowww!!!!
Simply Magnificent, during classes of Physics and Science I paid little to no attention due to my lack of sleep and teachers that lacked the enthusiasm to help me find the passion for it but this video just hits the dopamine for information collected online
WOW ... This is explained so nicely and clearly ! I wish I had access to this growing up, the confusing math and physics and science could have been really awesome and fun sessions ... I guess the kids today are lucky in that sense ... Keep up the great work and thanks
Thanks! Glad it was so useful!
Great content. Really don't understand why more people don't watch this stuff. You never really completely understand science at high school level and I for one really need these kinda videos to help.
Thanks man
Thanks I’m glad you’ve found it so useful.
We watched this at school but I didn’t quite understand refraction so I watched it again at home and now understand!
@@Science_Sauce Fermilab posted a video that says this explanation is pretty much wrong!
Thank you so much! All of the other videos immediately jump into the formulas and the others doesn't even scratch the surface of refraction. This video helped me so much. Thank you! I do hope you make a video about the laws of refraction soon. I really love the way you explained this. Thank you again!
I didn’t understand this in school but thank you for this video! It helped me understand way better and now I think I’ll be fine in the test I have coming up soon.
am a science teacher and my students find your videos very usefull
I love how you explained and demonstrated how things work, really cool
Thanks! Glad you liked it
Woah this is too good! Thank you so much!!!! The best video on this subject so far, a comprehensive, and well-explained introduction with amazing animation! Absolutely brilliant! Thank you for all that you do, it is very much appreciated. Got that "ah, I see!" moment finally.
Saved me with my exam
Same
For the ones curious, I leave here a explanation of why refraction happens:
(It can be explained as a consequence of conservation of momentum of photons)
If in medium 1 the index of refraction is n1 and in medium 2 the index of refraction is n2 and for the definition of index of refractions and wavelength we have:
n1 = c / v1 , v1 = λ1 * f
n2 = c / v2 , v2 = λ2 * f
Dividing the above equations we obtain: n2 / n1 = λ1 /λ2
So if n2 is higher than n1, the wavelength in medium 2 is smaller than in medium 1.
Now because the photon momentum is: p = h / λ
Applying the conservation of momentum of the incident and transmitted photon along the parallel line of medium separation:
p1 = p2 → h/λ1 *sin(θ1) = h/λ2 *sin(θ2) → n1 *sin(θ1) = n2 *sin(θ2)
This is the Snell Law!!
So the light bending is just a consequence of the conservation of momentum of photons!
Now I’m more confused
No one cares g 🤡
Thank you! That's so cool!!!!!!!!!!!!!!!!!!!!!!!!
Best explanation of refraction of light ever!
this helped me explain refraction perfectly to my students great explanation
Bro the car example hits different for me. I love you for this. Thank you so much.
Same lol
the analogy with the car definetly helped me understand this a lot better! thank you for the VISUAL this video is awesome
4:09 man that is so cool. Like sure we all know how a lens works, but to see it so concretely like that is so amazing. Great video.
This video is amazing. The way you explain things, makes science understandable for even 5 year olds. Thank you so much for the help.
another excellent video by Science Sauce!!!
Hello Mr Hansen
ive watched 4 videos on refraction and this one takes the cake. Thanks a lot
Yes I have to admit, this, was good. Even I could understand it and that's not an easy thing to achieve. You have a new Subscriber sir. Thank you.
POV: your here cause of physics
Here because it’s a lesson I’ve been set lol
I am though...
Same rn....for lesson..
Same XD
@@faeisanartist me too
Great video!!! This helped me understand refraction. The car explanation was perfect!
Genuinely, thank you so much for this video, it's so clear and very easy to comprehend.🙂
Wow thank you so much your car explanation was genius and really helpful to me thank you so much!
yassssss
Ur profile picture is the same as a sticker I have ur famous lol
Nice explanation.👍👍
Amazing. Subscribed based on this video alone. Thank you!
So does this mean refraction is a form of diffraction, where a wavefront pivots around an object (in this case, the material interface)? What's a good way to picture how this wavefront looks then? I guess maybe if we think about a wavefront impacting a surface at an angle, the first part of the wavefront to impact will 'stop' and allow different phases of the wave to 'catch up' further down the surface; so it appears that the direction of propagation of the lines of the waves becomes more normal to the surface, and constructive/destructive interference basically recreates the waves inside the material as if they had all entered from this more-normal angle.
so the angle of refraction is 'how far back' in the wave phase the difference in arrival times at the surface causes the wave front to be out of phase
Thank you for the wonderful explanation.
Do you have any tutorials on mirage?
Extremely good explanation
A great video, really well explained and demonstrated through the animations etc. Lots of key knowledge shown simply and effectively - I'm using it with my Y6 class in science tomorrow!
Damn! That's a magnificent level of detail. Thank you for sharing it.
Ahh finally i wasn't in on school at the day i was supposed to learn this. Now i can start 8th grade easily with no concern :D
Thank you sooo much i was confused why the pencil appears to be bended .this helped me so much and now becuz of this my concepts are clear as water
I graduated high school 14 years ago, now I'm re-studying it again. Gosh, school education is such a sham.
This is actually a helpful video
You sound so surprised.
It is exactly what I am getting taught but explained in a much better way
best video on the subject by far, thank you 🙏
This was extremely informative until i saw the ending where you used a focal lense and the middle ray of light (indicent Ray) exited the same path as the incident ray but was the emergent ray why is that.
Great and precise explanation
this was so helpful and in school they just dont teach it this way.have you ever considered teaching or taking classes by any chance? i think you could really help other people understand too
i found this videos name in my teachers screen-share, learnt something new
Thank you for the amazing explanation 😄
YES THIS VIDEO IS GOING TO SAVE MY PHYSICS TEST SCORE
That explaination is perfect. Thanks man ❤
I found your channel now , and chasing all the videos you uploaded.
dont go to close keep your social distancing
@@HuzaifaTahaRangwala you mean "too" close?
@@dakshinideshbhakt4204 oops yeah lol idk why I wrote to
Great video. Explained very well!
Do this tells me that light rays have a thickness.. cause one end of a light way must enter the new medium first then the other ends follow. How thick is a light ray?
Ok, I'm sorry to disappoint but I wasn't sent by my physics teacher. I'm studying for exams and found this video that turned out to be extremely helpful, like REALLY helpful. So yea just wanted to say thx.
me too
Thanks, needed this for my exam.
The best explanation 👌 😊
(this paragraph was added in the edit) I wrote a lot more text than I intended. Sorry to anyone who decides to read it all.
1:46 This image just doesn't make any sense. It's a wave. Not a car. It only has one 'point of contact' with the world. So one side can't enter faster than the other side, cause there is no other side.
Please tell me why I'm wrong. I know I'm wrong, but the video does not explain why, and I don't know why.
2:02 This also doesn't quite make sense. In the image, the light appears to continue on it's path, before scattering and moving towards where the it should be, according to you.
You say one thing, but the footage shows something completely different.
I am getting more and more frustrated the more videos I watch. I just want to understand how it works, but noone explains it in a way that consistent with itself.
I must conclude that at least one of the following are true:
1: I lack some basic information about how light works, that everyone else watching is assumed to already know.
2: Everyone is just content with not really understanding how it works.
3: The topic is in actuality far more complex, necessitating a simpler way of thinking about it, and this video explains the simpler way.
4: Something I haven't thought of and mentioned.
Maybe I should contact someone who knows, so I can ask them questions about this instead of looking it up, cause looking it up only gives the widely accepted explanations, that doesn't make sense to me.
3:59 That is nonsense again! You take two points on the pencil, and draw parallel lines, that exit the water at the same angle, but they don't end up at the same point. So those lines are different perspectives. The thing showing what the pencil would appear as, is not what is would appear as from one point of view. It is what it would appear as from a range of points of view.
I want to reiterate that I just want to learn what's right, and I expect that I am wrong. I am presenting how I understand it so someone who knows what is right can more easily spot which part of what I am saying is wrong.
4:43 And yes, we do see from a range of perspectives because the eye has a lense. But that lense does not have the diameter of half a pencil, so at best, that increases the margin of error for observational proof.
Also, I am almost certain that the light in the eye, doesn't hit such a tiny area. I did some googling, but googling rarely helps, cause everything I could find in the amount of time I felt would be worth spending on looking it up was either simplified or expects the reader/viewer to have a had a lot of education on the subject already.
I want to mention that I want to know this, in part, out of curiosity, and in part because I think it would be relevant for a personal project I'm working on.
Every time I try to learn something even slightly complex, I just get dissapointed, and lose another bit of my remaining trust in education. I have More motivation to learn this stuff than 90% of the people seeking out this information, but the information has been made to fit that 90% of people who will only ever use that information to pass some test.
I wrote this shortly after waking up, so I was a little tired, which makes it more likely that I missed something. I really hope that I did miss something, and that I'm wrong, and that education is not actually as disappointing as it appears to be to me right now.
Very good example! Thank you
excellent 👍👍👍👍👍👍
thank you ❤️
Very good explanation
Thank you it was a amazing explanation.
Does the object that the light is refracting off of get birghter the closer you get to it?
But I thought that light always traveled at the speed of light. I thought that was an intrinsic property of light, that photons only can move at light speed. Or is that totally wrong?
Hey Sir, Can you tell me the name of the song in the background. Sorry if it isn't related to the wonderful explanation u said :). Also my mum loved it. She said I could learn from it XD. Its true tho :P.
When leaving the lens, shouldn't it be refracted towards the normal again since one is going from a slower to a faster medium.
at 4:14
Thank you so much!!
3 hours before exam 😂
should use ya diff locks so you dont turn when ya hit the sand
Thank you for such an amazing explanation. 😁
A big genuine thank you. Now I understand!!
What does a surface water wave look like when it hits a liquid of a different density (separated by perhaps a thin membrane)?
Thank you this helped me so much!!!
pov: you're in an online lessons and your science teacher sent you here
lol
Wasn't this theory for why light bends in glass, water, etc debunked in videos by Fermilabs and others before this video was published? I guess this theory has the advantage of being easier to understand than perpendicular electric fields and Maxwell's equations. My understanding of the topic is limited, but light bending seems to be related to different resistances of electrical fields generated as light passes through different mediums.
bro this is gcse
@@eoinreilly8477 what’s gcse?
Light does bend
3:55 does that means light refraction is only perceived by living beings? You say it as if the illusion was produced by our brains assuming incorrectly where light is suppose to be
The illusion that the pen is broken is produced by our brains. The fact that the light has been bent is not an illusion. Any organism that can see the straw would see the same broken illusion.
How you edit like this?
This was super helpful
"It's called... REFRACTION"
*beat drops
W i have been searching to understand a long time ago W vid
Good explanation tysm!
You’re welcome!
How to calculate the refracted ray?
Thanks very helpful
People who have tae watch this fur online school 💀
thats me
In it lol
Me
Yesh :/
Yeah.. tae
I love your Intro
It’s a great video 😊love this video
thanks for this ...✅
Thanks a lot
Im a physics student thats been trying to wrap my head around this for a while now , and watching this I got a missive, OOOOOOOOH, moment.
I see these.. but no one ever since explains ehat happens if you open up the angle of incidence.. what affect that has on the refracted ray? Is it always the same? Does that angle change with material?
Thank u sir🙂
Welcome 😊
Very good
excellent.
wavelngth decreaes inside the block (freq is same)
You keep saying that the light slows down, anf while I understand what you are explaining, I am confused, as in school we are taught, that the speed of light is not changable. Can you explain this to me please?
apparently, evolution "accidentally" created these complexities in our human body. eyes, etc..
nice
thnx
Hi 🤣
@@manasparulkar6326 isne acha smjhaya tha 🤣😂😂
Science
Science
I got a qn, why does the light that goes into the water from our eyes not bent?
Thanks i understood a lot!!!
Nice 👍
pov: that storm happen so ur teacher sent u here
POV: your science teacher sent you this for an online lesson!
Your either on teams or zoom
Your in year 7
And you either understand or still don’t 👁👅👁
I am in Year 6
i’m such a tryhard, missed a day and still trying to ahead of my class🤣
how quirky of you, hehe
I see You are very good
👍🏻100
Thanks
@@photongaming7197 hoi
@@thehyperhydra9086 hoi
@@photongaming7197 hoi
I’m here bc of my final project 👁️👄👁️
l I
-
Edit; I luv this explanation:)
this was so helpfull
pov: your science teacher sent you here.
Mine did