Qualification > Sciences
CIE physics paper 2
falafail:
--- Quote from: falafail on November 15, 2009, 12:57:40 pm ---QUESTIONSQUESTIONSQUESTIONS
get your past papers out, haha
june 05 question 6 (b) (ii)
nov 04 question 6 (b) (i)
nov 03 question 4 (a) how are you supposed to find the frequency from the graph(s)? :-\ and, same question, part (b) (iii) wtf
nov 03 question 5 (a) (i) how do you know which one's the positive plate and which one's the negative? also, same question part (b) (ii)
phew.
--- End quote ---
tell me how to solve theeeeeeeese D:
also, june 03 question 4 (i) 1, and (iii)
what affects the seperation/brightness of fringes and stuff? i never actually got that .__.
Nov 02 5b (iii),
june 02 4b(ii),
nov 01 6- all of it.
plzplzplzplzpzlpzlpz tell me how to do these? anyone? :(
saadiyah:
--- Quote from: Tyserius on November 15, 2009, 04:36:17 pm ---As I = ka2 and is directly proportional to 1/r2,
ka2 = m/r2 (m is the other constant)
And since r is increased from 3.0m to 5.0m the new r, r' is = 5/3 r
So to find your new amplitude, a' :
ka'2 = m/(5/3 r)2
ka'2 = m/(25/9 r2)
ka'2 = 9/25 m/r2
ka'2 = 9/25 (ka2) << Substitute from ka2 = m/r2
a' = 3/5 a
= 3/5 (1.0 x 10-7)
= 6.0 x 10-8m
--- End quote ---
thx a lot!^^
happy angel:
--- Quote from: falafail on November 15, 2009, 05:35:20 pm ---tell me how to solve theeeeeeeese D:
also, june 03 question 4 (i) 1, and (iii)
what affects the seperation/brightness of fringes and stuff? i never actually got that .__.
Nov 02 5b (iii),
june 02 4b(ii),
nov 01 6- all of it.
plzplzplzplzpzlpzlpz tell me how to do these? anyone? :(
--- End quote ---
j03: a(i) the sources must have same frequency and wavelength and phase difference btwn the sources mustbe constant or zero..
and 4 (iii) u nid wich part? 1 2 or 3?
saadiyah:
plzz help me with this one..
It is possible to use two separate oscillators feeding 2 loudspeakers to demonstrate interference of sound. It is not possible to use 2 filament lamps, however similar, to produce interference of light. explain this difference.
falafail:
--- Quote from: happy angel on November 15, 2009, 05:57:05 pm ---j03: a(i) the sources must have same frequency and wavelength and phase difference btwn the sources mustbe constant or zero..
and 4 (iii) u nid wich part? 1 2 or 3?
--- End quote ---
oh sorry, i meant 4 (b) (i) 1 not 4 (a) D:
and um, all of it. i need someone to explain what affects separation/brightness of fringes etc
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version