The de Broglie Wavelength and Wave Particle Duality - A Level Physics
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- Опубликовано: 25 авг 2024
- This video introduces and explains both the de Broglie wavelength and wave particle duality for A Level Physics.
If waves can sometimes exhibit particle like properties, does that mean that electrons that we have always through of as particles also behave as waves? What about other particles? What about you? This video shows the next (logical) steps in the work of scientists from the early part of the twentieth century.
We can calculate the de Broglie wavelength of an electron or any other particle for that matter.
To see more from Sixty Symbols about this look here: • de Broglie Waves - Six...
Thanks for watching,
Lewis
This video is recommended for anyone studying A Level Physics in the following exam boards:
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CIE
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IB
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Wow, thank you for taking the time to make these videos. As someone who regrets not taking proper A-levels (and seeing how much it costs to take them as an adult) this is the perfect in-between for me. I feel sad that, like many school leavers, I never really knew about these fundamental scientific concepts (which affect our everyday life).
h35019 Thanks. But it's never too late to learn - especially with the internet and the wealth of new material produced about these core subjects.
You could always take a foundation year at university if you like the idea of studying science at degree level.
Wow, this whole channel is extremely high quality, by the most modern standards, and this video is 9 years old! Amazing. Best A Level Physics on RUclips.
Louise broccoli was a great guy
why isn't my teacher like you? God you are just an amazing teacher 😏 man u are the best so far ... I WILL CONTACT YOU ONE DAY JUST TO TELL YOU HOW MUCH YOU ACTUALLY HELPED ME 😎 dude I really appreciate it. U ARE HELPING US A LOT 😭🙌🙏👑
I'm obsessed with your teaching style whereas everyone else is awestruck by your pen.😭🐥
They’re both awesome!
hopefully pass physics with this ty m80
And...? :)
Hopefully me too, lol
@@noahhorwitz1018 Lol its been a while haha I managed to get a C in my A level physics which wasnt what I needed but got into my course and graduated anyways with a 2:1.
@@Trickzsource Awesome! What degree did you do?
@@finnhadley-burgess18 Computer science 3 yrs course
I see feynman diagram, I SUBSCRIBE
i love watching these in my physics lesson when my teacher confuses me :D
luv ur vid and ur pen man
One way to think of wave particle duality of light and matter in the form of electrons is that it is forming a blank canvas for us (atoms) to interact with; we have waves over a period of time and particles as an uncertain future unfolds. The mathematics of quantum mechanics represents the physics of time with classical physics represents processes over a ‘period of time’ as in Newton's differential equations.
In this theory the mathematics of quantum mechanics represents geometry, the Planck Constant ħ=h/2π is linked to 2π circular geometry representing a two dimensional aspect of 4π spherical three-dimensional geometry. We have to square the wave function Ψ² representing the radius being squared r² because the process is relative to the two-dimensional spherical 4π surface. We then see 4π in Heisenberg’s Uncertainty Principle ∆×∆pᵪ≥h/4π representing our probabilistic temporal three dimensions life. The charge of the electron e² and the speed of light c² are both squared for the same geometrical reason. We have this concept because the electromagnetic force forms a continuous exchange of energy forming what we experience as time. The spontaneous absorption and emission of light photon ∆E=hf energy is forming potential photon energy into the kinetic energy of electrons. Kinetic Eₖ=½mv² energy is the energy of what is actually happening. An uncertain probabilistic future is continuously coming into existence with the exchange of photon energy.
Great video, you‘ve explained it very understandibly
Could light and matter in the form of electrons be waves over a ‘period of time’ and have particle characteristics relative to the atoms of the Periodic Table when we have the absorption and emission of light?
Is the exchange of light photon ∆E=hf energy continuously transforming potential energy into the kinetic Eₖ=½mv² energy of matter, in the form of electrons, as an uncertain ∆×∆pᵪ≥h/4π probabilistic future unfolds?
Thanks for this explanation for us.
Glad it was helpful!
@@PhysicsOnline please share some videos about plank's thinking about this.
great videos! if only I had found them earlier, also where do you get those pens from?
+Hannie Shah Thanks. They are Pilot V-Sign Medium pens from eBay.
this channel is great! thanks for the videos
I was pronouncing it bro-goul-lee 😂
He was French
I pronounced it as brow-ly. I erroneously believed him to be Dutch.
what pen are u using? its looks nice.
Sike
Pilot V-Sign Medium pens from eBay
These videos are so helpful thank you.
hi, good video. My question. Can the equation f = E / h -> f = (m * c ^ 2) / h be applied to the matter, for example 5 kg of stone and calculate the frequency of matter or does not make sense
Im sure u already know the answer now😂 but since c is speed of light and only photons/waves travel at this speed, frequency in this equation is only viable for them
What's the pen, looks really satisfying.
+Oscarandjo It's a Pilot V-Sign Pen in medium - lovely to write with.
Is reletavistic mass the mass * lorentz factor?
weird question but what kind of pen are you using?
Can sound waves generate electricity?
Maybe piezoelectric by sound pressure to produce electricity
Does water also behave as both wave and particle?
Haha nah bro these are atomic particles, can't see wave forms
How does wave originate from particles
nice work keep it up :)
Can't thank you enough for this channel honestly, soooooo useful :)
+Harvey Marples Thanks - it's something I now look back on and wish I'd started sooner. Its really useful for the students I teach at school and has also helped many more students around the world since then.
Yeah, its honestly one of the most useful resources I have for revision and stuff, its awesome thank you :)
So does everything have a wavelength, depending on momentum
Yeah, pretty much.
4:05 your n for Interaction looks like a u lol, thanks for the video still, really helpful!
Great👍👏
why am i the only one who finds this scary? the fact that we can't even understand what's actually happening here, we just know there's something really fishy, and even worse, this thing we don't understand is touching us every waking hour, we observe the effects of this unstoppable force that can travel the whole universe at its speed limit and we think we make sense of it but in reality we don't
This is so cringe! 😫
Huh?
hope u pass ur exam buddy
@@sia1234 What's cringe about it? You're probably all here to pass your exams and aren't actually giving these topics any thought or trying to make actual sense of them. None of this is even remotely intuitive, it's really weird.
@@BltchEricaexactly dude
I’m so shit at physics but I’m really interested in how things work and this kinda freaked me out too😂
Sorry but how is Diffraction( the spreading of a wave) an example of interference again?
A late reply but its because when the wave-length >> width of slit, it causes bending of light from the edges of the slit. Because wavefronts are spheres they are capable of acting as separate source of light. The waves originating from these new wavefronts move in all direction when exiting the slit and interfere constructively and destructively due to differences in distance between the wavefronts causing wavelets to arrive at a point in different phases and producing fringes on the screen.
Therefore, diffraction is an example of interference when certain conditions are met. You can checkout the single slit experiment.
2019 exams anyone?
Eyy
I’ll be 2021
do you need to know the experiment in the exam
yes i think
From which country u belong to?
Great Britain
@@PhysicsOnline thankyou sir for replying I became ur big fan
Sir can u transfer 500 Rs in my paytm wallet
I m poor and I really need it
@@PhysicsOnline sir pls reply
pen is pilot v sign pen
hehehehehehehmy nameeeeeeeeeeeeee
Very good.. but You really have an awkward English pronunciation.. please add subtitles..
hahaa that's hilarious, the guy is speaking in the natural accent of this language and you're telling him it's awkward lol
There are no particles. There are only quanta. People need to stop using this old and completely wrong terminology.