# Lab 9 Execution

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## Re: Lab 9 Execution

anyone got ERROR OF SLOPE? wat was ur value close to?

sss
Guest

## ERROR OF X

HEY IM HAVING ISSUES WITH MY ERROR OF X. ALL THROUGH THE EXCEL I'VE BEEN USING THE ERROR TO BE .003m, WHEN I GET TO THE BOTTOM CHART FOR X, I TRIED USING .003 AND ITS NOT WORKING. THEN I TRIED USING THE ERROR FORMULA AND IT DIDNT WORK EITHER. CAN SOMEONE PLZ HELP, BECAUSE I CANT CONTINUE WITHOUT FIND THE ERROR OF X. THANKS A LOT. [b]

phygirl.
Guest

## ERROR OF SLOPE

anyone got ERROR OF SLOPE? wat was ur value close to?

student1
Guest

## ERROR

WHAT IS THE ERROR IN X? Someone please post it

abc
Guest

whats error of X

phy12212
Guest

## error in slope

actuall in my case, my slope is 1.05E7, and I get error in slope is 2E5. my # turne into green. I hope it help!!!!!!!!!!

question
Guest

## Error of x

error of x is is sqrt((DeltaX^2 + DeltaX^2), since X is the twice the distance from the position to the middle.

we just simply put (sqrt(0.003^2+0.003^2)), assuming both errors are 0.003m

lalala
Guest

## wavelength

wavelength = 1/(Rh*((1/2^2)-(1/n^2)))
Rh is constant given in the instruction, 1.097E7

lalala
Guest

dd
Guest

## DeltaX

for Delta X, we assume that each error is .003, when i enter in .004 (get that from sqrt(.oo3^2 + .003^2)) its marking me wrong. Does anyone know what i'm doing wrong? each error in X for the red,blue,purple is .003 right?

yeyy
Guest

## for Delta X

sqrt(0.003^2+0.003^2)

is 0.004243. Try to keep as many as digits possible.

It should work fine.

lalala
Guest

## error of slope

Anyone know how to calculate the error of the slope? or what number it should be around? thanks!

errorrr
Guest

## DELTA X??

OKAY. I AM SOOOOO SORRY, I SWEAR I REALLY AM, I KNOW THERE HAVE BEEN NUMEROUS POSTS ABOUT THIS, BUT HONESTLY ITS NOT WORKING FOR ME AT ALL. I DID A COMBINATION OF THINGS, I WORKED OUT EQUATIONS, I PLUGGED IN, I DARN RIGHT EVEN DID A DANCE TO TRY TO GET THIS BUT ITS NOT WORKING.

I REALLY NEED HELP WITH THE ERROR OF X, IF I DONT GET THAT VALUE, I CANNOT MOVE ON TO GET THE OTHER ERROR VALUES.

I'VE BEEN USING .003m FOR MY ERROR, AND I USED THE ABOVE EQUATION sqrt((.003)^2+(.003)^2) to get .004243 etc... BUT WHEN I PLUG THAT INTO THE EXCEL ITS NOT WORKING. I PLUGGED IN .004, THEN I JUST PLUGGED IN THE WHOLE VALUE, THEN I JUST KEPT TRYING VARIATIONS, BUT NOTHING HAS WORKED. IT REALLY DOESNT MATTER HOW MANY DIGITS I PUT IN, BECAUSE WHEN I PUT IN THE WHOLE THING, IT DOESNT TURN GREEN. UGH.

CAN SOMEONE PLEASE TAKE THE TIME OUT FROM THIS GORGEOUS DAY TO HELP ME OUT. I REALLY APPRECIATE IT. THANKS.

phygirl.
Guest

## sketch

how did u guys explain the observed sequence using eq 1?

phy
Guest

## Error oF X

finally found the error of x.

phygirl.
Guest

## error of x

phygirl, what is it? because its not working for me either

abcd
Guest

## Re: Lab 9 Execution

how do you find the relative error in x/2y??? i'v got everything but the error of the slopes if someone will answer this for me.

annoyed
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