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CIE physics paper 2

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falafail:

--- Quote from: Tumble Bug on November 15, 2009, 02:24:30 pm ---oct 2005 Q4 (a) (ii)

how are we suppouse to find area under tha graph????
 ???

--- End quote ---

i found the area of one big square then estimated the number of squares under the graph and multiplied it by the area that i got lol

thanks for answering my questions By the way, i'll check them out when i'm done with the paper i'm doing ;D

Tumble Bug:
oh and Q5 part c (i)and(ii) of the same paper...
thanx...

Tumble Bug:

--- Quote from: falafail on November 15, 2009, 02:32:35 pm ---i found the area of one big square then estimated the number of squares under the graph and multiplied it by the area that i got lol

thanks for answering my questions By the way, i'll check them out when i'm done with the paper i'm doing ;D

--- End quote ---

Np... :D

khi2ruh:

--- Quote from: Tumble Bug on November 15, 2009, 02:33:46 pm ---oh and Q5 part c (i)and(ii) of the same paper...
thanx...


--- End quote ---

U have to use the relationship I is proportional to A^2

I is proportional to (3*10^-4)^2

take x as the intensity of wave B so then x is proportional to (2*10^-4)^2

((2*10^-4)^2)I=((3*10^-4)^2)(x)

solve the equation

x= 4/9 I

Tumble Bug:
thanx a bunch!!! :D

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