antiphase and out of phase are just different words for each other, they just mean the same thing and since they are on opposite sides of the equilibrium line(line in the middle) it means they are out of phase/antiphase with each other
@@luca_mania thats for a progressive wave, not a stationary wave, for a stationary wave if they are on opposite sides of equilibria, they are antiphase, doesnt matter where they are. on a progressive what youre saying is true
@@josephh067 thats for a progressive wave im sure, if its stationary, and they or on opposite sides of equilibria, then they must be antiphase, as shown by the answer. So it doesnt matter where they are on a stationary wave as long as they are on opposite sides then they are antiphase
each pulse has 12 oscillations/wavelengths so after finding the wavelength of one full wave, you have to multiply by 12 to find out the length of 1 pulse.
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I love how you do the PMT questions. can i also recommend the revisely practice questions as well? its AS and A2 for different exam boards
in the last question why did you not consider the length in mew and just the 1/2l length?
24:50 how is square root of 2 divided by 2 - equivalent to dividing by root
I thought they cancel out
2^0.5
÷
2^1
=
2^-0.5
In other words, 1/root 2
this is AWESOMEE
ty really useful looking for more!
Hey sir, could you do videos on the Edexcel 2019 and 2020 A Level papers?
Thanks bro
Please could you explain why P is in antiphase of R and not out of phase for question 4
antiphase and out of phase are just different words for each other, they just mean the same thing and since they are on opposite sides of the equilibrium line(line in the middle) it means they are out of phase/antiphase with each other
@@davidkierpacz7809antiphase and out of phase aren’t the same bc out of phase could be by any amount of degrees whereas antiphase is 180
@@luca_mania thats for a progressive wave, not a stationary wave, for a stationary wave if they are on opposite sides of equilibria, they are antiphase, doesnt matter where they are. on a progressive what youre saying is true
@@davidkierpacz7809why is it different as on pmt notes it says that antiphase means there is an odd number of pi between them
@@josephh067 thats for a progressive wave im sure, if its stationary, and they or on opposite sides of equilibria, then they must be antiphase, as shown by the answer. So it doesnt matter where they are on a stationary wave as long as they are on opposite sides then they are antiphase
For question 8 can you explain how its pi over 2 radiens
same its supposed to be 3/4 i don't get where the pi/2 is coming from
At 9:25 could you explain why you don't convert 0.41 rad to 0.41pi rad?
In question 4, I thought antiphase meant when it's 180 degrees out of phase. When looking online, other people have said the same thing.
I'm getting so fed up of having to explain this over and over!
They *are* 180 degrees out of phase on a stationary wave! It's not a progressive wave!
@@ScienceShorts some poeple just dont listen am i right sir
@@mannytalwar3095 dbi
what is the difference between antiphase and out of phase?
Same thing. Just that antiphase implies 180 degrees out of phase.
Can someone explain question 9 for me again?
why do we multiply it by 12 in q11?
each pulse has 12 oscillations/wavelengths so after finding the wavelength of one full wave, you have to multiply by 12 to find out the length of 1 pulse.
THank YOu SOOooo MUuch
You geniunely saved my life
I'll come back here on results day
You are a life saver. This is exactly the sort of videos I need. Will you cover alevel Edexcel physics in the near future🥺🥹❤
At soon as I finish AQA and OCR first! But these are useful for Edexcel too!