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how do I add a picture here? I've taken a snapshot of a question that's confusing me but i'm not sure how to upload it here? !
there's a button "upload a file", tap on it and you can upload your file.
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how do I add a picture here? I've taken a snapshot of a question that's confusing me but i'm not sure how to upload it here? !
i mean that i calculated percentage uncertainty like this: [error/value of g + 2*0.01(error of t)/value of t]* 100
my answer came : [24.1/987 + 0.01*2/1] * 100
=2%+2.44%=4.44%
is this method correct?
and i also want to know if a value is like 3 sig figures should the error be 3 sign figures as well or should it have same decimal places as the value. e.g 2.41+-0.19 or 2.41+-0.20.
and one another question i always calculate my absolute uncertainty from the percentage uncertainty in questions such as qs 2b of n12/53.
so how do we calculate the absolute uncertainty directly when values both having absolute uncertainties are being divided, multiplied or added. Like values of t/s and l/cm
. In this question they are being divided so how will we calculate the absolute uncertainty of them. I know its v2 so the uncertainty will be multiplied by 2 afterwards.
Can anyone plz help me to find percentage uncertainity of mayjune 2012 p5 last part of r and m????
Soldier313 here are the diagrams for Nov 07, the drawn one is one i did, and the other one is what one of my teachers gave us. hope they help...
View attachment 28145View attachment 28146
Can you also post your diagram for N09/51 Q1 please.....
Do we draw gradient traingle for the line of worst fit as well?
yes we.. in order to find the uncertainty of the gradient we have to calculate the gradient of worst fit cuz:
uncertainty= gradient of best fit - gradient of worst fit
Yeah the gradient has to be calculated for the worst fit line as well but i meant that drawing the traingle on the graph is necessary?
Soldier313 here are the diagrams for Nov 07, the drawn one is one i did, and the other one is what one of my teachers gave us. hope they help...
View attachment 28145View attachment 28146
JazakAllah!there's a button "upload a file", tap on it and you can upload your file.
JazakAllah!
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