OMG THANK YOU! I straight up got a whole page on my test wrong (although curved so not a big deal haha), because I didn't understand this topic. Exam tomorrow, and after preparing I thought why not, so I watched this video and I understand :DD!
Hi, thanks for the video, the only thing I am confused about is : what is "n" in P.D = nλ? Does "n" have a name? For example I understand that p.d. is the path difference, a visual thing, I understand λ too, it is wavelength. But what is "n"? I get how to use in the question but don't actually get what it is? Could you help please?
Good question - 'n' is just an integer. It's supposed to represent any integer value. So n could be 0, 1, 2, 3, 4, .... The reason we put it there is because for example constructive interference, the path difference can be ANY multiple of 'λ', so it could be 'λ', '2λ', '3λ', '4λ', etc. All are ok. It's not so important to figure out what 'n' is. You could make it 'n'ything you want (hahah). I hope that helps - it's a bit weird I know, but there are lots of things in nature that come in multiples of something. For example in physics (and Chemistry) we have the energy of a photon which is E=hf (h is a multiplier here - although it's not an integer, photon energies are always found as 'h' times the frequency. In quantum mechanics, in fact, this is the underlying physics behind everything. Energies, energy levels, etc etc all come in multiples. Things get wacky with chemistry and electron orbital shells, but it's the same idea.
Now I'm using either Notability on my ipad, or else I use a drawing tablet (Wacom Intuos) and Google Jamboard for the program to draw. I record the screen and audio + edit and export using Camtasia.
you guys got any programs where you tutor math and physics I was a A* physics student in Igcse but barley pass in IB. I can understand concepts pretty well but have a hard time using them in Ib style questions.
![Slit Diffraction (at end, should be 0.015m, not 0.15m) [IB Physics SL/HL]](http://i.ytimg.com/vi/HhI8ddLD2Yc/mqdefault.jpg)
![Slit Diffraction (at end, should be 0.015m, not 0.15m) [IB Physics SL/HL]](/img/tr.png)
![Standing waves [IB Physics SL/HL]](http://i.ytimg.com/vi/B9SRpYBmPZg/mqdefault.jpg)
You're the man Mitch!! I love your teaching style and bright attitude; you truly make learning physics so much more bearable, dare I say fun. :)
Wow, thanks!
I literally cannot thank you enough mitch, I revised all my units throught your videos and genuinely it is paying off !!!
I'm so glad the videos are helping you out!
OMG THANK YOU! I straight up got a whole page on my test wrong (although curved so not a big deal haha), because I didn't understand this topic. Exam tomorrow, and after preparing I thought why not, so I watched this video and I understand :DD!
Your videos are literally life savers! Thank you!
I'm so glad you can benefit from them! Cheers, Mitch
I'm ALevel Physics student and I think this will help me very much in that topic!! Thanks broo for that
Those videos are super helpful.
U r too awesome
Thanks!
we have the same headphones yay
Hi, thanks for the video, the only thing I am confused about is : what is "n" in P.D = nλ? Does "n" have a name?
For example I understand that p.d. is the path difference, a visual thing, I understand λ too, it is wavelength. But what is "n"? I get how to use in the question but don't actually get what it is? Could you help please?
Good question - 'n' is just an integer. It's supposed to represent any integer value. So n could be 0, 1, 2, 3, 4, ....
The reason we put it there is because for example constructive interference, the path difference can be ANY multiple of 'λ', so it could be 'λ', '2λ', '3λ', '4λ', etc. All are ok. It's not so important to figure out what 'n' is. You could make it 'n'ything you want (hahah). I hope that helps - it's a bit weird I know, but there are lots of things in nature that come in multiples of something. For example in physics (and Chemistry) we have the energy of a photon which is E=hf (h is a multiplier here - although it's not an integer, photon energies are always found as 'h' times the frequency. In quantum mechanics, in fact, this is the underlying physics behind everything. Energies, energy levels, etc etc all come in multiples. Things get wacky with chemistry and electron orbital shells, but it's the same idea.
@@siriusrevision Thanks a lot for this 👍🏻 It makes sense now knowing that it is just a multiplier and not some other variable that came out of nowhere
Hello Mitch. What is the app that you use to draw?
Now I'm using either Notability on my ipad, or else I use a drawing tablet (Wacom Intuos) and Google Jamboard for the program to draw. I record the screen and audio + edit and export using Camtasia.
@@siriusrevision Thanks Mitch
1:40 isn't this the sum of amplitude and not intensity?
yup amplitudes
slay king
Hah, thanks!
you guys got any programs where you tutor math and physics I was a A* physics student in Igcse but barley pass in IB. I can understand concepts pretty well but have a hard time using them in Ib style questions.
Yes we do, you can check out our OSC tutor program here: oxfordstudycourses.com/student/tutor
Can you explain the joke with headphones i did not get it:(
too quiet