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but they knew that IF the cathode rays were particles, they would be charged since they were deflected in a magnetic field?

wwell... actually not so sure anymore.. can u tell me ur reasoning for d?

omg really.. is that mrs pooviah

a friend eh ;) lol... don't u think at at phys, we were always being told that the paddle wheel confirmed the debate???!?!

well ur right, but i think this question is annoying. hear me out.. from what my teacher KEPT saying to me, the paddle wheel experiment CONFIRMED that cathode rays were particles, since they have momentum, and waves cannot have momentum. Thus, this proves that cathode rays are NOT...

sorry to propoganda and pdoueihi, but 15 is b ...

what school do u go to btw? (just curious)

defiantly? lol umm i said b) only because since its p-type doping, there is an 'acceptor' level just above the valence band in which the electrons jump into, leaving HOLES in the valence band. thus, the electrons do not actually conduct in the conduction band.

yeah, k but didn't the magnets in the cathode ray tube already show that it was a charged particle.. except the wave-supporting physicists just wouldn't give up. so then when the cathode turned the paddle wheel, it was basically a confirmation no only of the fact that cathodes r particles...

kk point taken.

oh, gay. i didn't even read the other options when i was rushing through :burn:

oh, i had no idea the top 5 at ur school wrote d. the answer must be it then

Question 12 is definitely a) Cathode rays can turn a paddle wheel. And i'm question 15 is b) since conduction only occurs in the valence band in silicon doped with boron - P-TYPE doping edit. alright so its no a) my bad

Hi, how easy/difficult is it to get a job in Australia after graduating in solar & photovoltaic or renewable engineering. How about overseas? Thanks in advance.

WTF, what do u mean 'deserves'? Who cares what you think, whatever the BOS does, deal with it. guaranteed 61 will align to 90.

BTW: isn't there a difference between the NAIRU and the natural rate of unemployment?

oh i see... btw what am i supposed to say at the interview.. cos the ppl r gonna know civil was my first pref, so am i just supposed to be like 'yeah... elec is my 2nd pref... but i still like it?:)' lol

Thanks for that. I'm curious as to how long you spend on BOS though, because everyone I go, you seem to be on every thread correcting people.

did u get one? i didn't.. so devos but i got my next preferences (electrical + solar/photovoltaic). Its not the same tho.

why do you think u would lose marks lol