The Student Room Group

the specification

i was revising physcs (aqa gcse) and realised that the cgp book talks about long wave, medium wave and short wave radio wav es, but tha not even in the specification???? does that mean i still need to know it or do i skip that part
idk i personally just used the spec religiously so if it doesn't say it on the spec maybe ignore it?

have you got an older version of the cgp book? maybe that's the reason

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