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WJEC PH2 Waves & Particles 25th May Discussion thread

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Original post by Emissionspectra
What did you get for the distance the pulse travels through the fibre?


1600m
Comparing electron populations of the three levels: O is full, U and P empty?
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hornet_56
Original post by MahatmaCane
Comparing electron populations of the three levels: O is full, U and P empty?


Yeah I wrote that too :cool:
Original post by hornet_56
Yeah I wrote that too :cool:


I think I wrote O > U > P

Anyway, that was a pretty tough exam compared to all the rest I practised. I did all past papers, including questions relevant to the exam from past PH1 and PH2 papers way back to 2004. It was just as difficult as May 09, which had a an A grade boundary of 51/80 (63%)

I'm predicting an A boundary of 55/80

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