Qualification > Sciences
CIE physics paper 2
Asif iqbal:
Guys I've got this really cool list of all the definations really good for final revision will hardly take ten minutes to read all of them where do I post them here or should I make a new topic for it??
MaNi_DaDuDe:
--- Quote from: Asif iqbal on November 15, 2009, 08:54:13 pm ---Guys I've got this really cool list of all the definations really good for final revision will hardly take ten minutes to read all of them where do I post them here or should I make a new topic for it??
--- End quote ---
Hey :)
Just attach it here, thanks! :D
falafail:
--- Quote from: happy angel on November 15, 2009, 06:31:03 pm ---ah sory,, it must be comparable to wavelength.. so smfing relatively small eg 1mm
abt separation of fringes use the eqn B=(D times lamda)/d
were D is distance btwn double slit arrangement and screen
d is separation of the 2 slits..
varying D and d ul see abt separation.
now intensity.
use I = k/r2
were r is the distance btwn 1st slit and the double slit..
wen r decreases I ie intensity increases.
ermm i managed to mk u und? a bit? ???
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Wait so in that first equation whats B?
And the intensity is inversly proportonal to r2 then? Is that the only thing that a ffects the intensity?
falafail:
--- Quote from: happy angel on November 15, 2009, 06:55:25 pm ---hey tell me in june 09 p2 the 1st ans wen u calculate error its 0.18.
in marking scheme its 0.09
y shud we divide by 2??
plzz tl meee :'( :-[
--- End quote ---
I cant download the past paper right now but if you post the question i can probably help..
falafail:
*censored*.
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