Lab 9 Execution

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Lab 9 Execution Empty Lab 9 Execution

Post  :) on Tue Apr 21, 2009 1:25 pm

Let's get the ball rolling please Very Happy

How are you guys getting the wavelength (m)?
- i tried 1/ {(1/2^2)-(1/n^2)}

with the value of (1/2^2)-(1/n^2) i thought that was (1/wavelength) which i tried entering into the appropriate column but only one lights up o.o

any ideas on this? my values of m won't light up either, did you guys account for a distance difference?

thanks Smile

:)
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Lab 9 Execution Empty Wavelength

Post  k8 on Tue Apr 21, 2009 4:04 pm

d*sin(theta)= m(wavelength). but my answers arent coming out correct. can someone explain in better detail how to get the wavelength?

k8
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Lab 9 Execution Empty slope

Post  help1234 on Tue Apr 21, 2009 4:23 pm

Does anyone know how to find the error of the slope?

help1234
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Lab 9 Execution Empty wavelength

Post  physhelp on Tue Apr 21, 2009 4:28 pm

(1.8955E-6)*sin(your angle)=wavelength (m=1)

0.0254/13400=1.895E-6

physhelp
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Lab 9 Execution Empty error of slope

Post  physhelp on Tue Apr 21, 2009 4:32 pm

does anyone know how to solve for error of slope besides just putting in random numbers. Is there a calculated value i can use?

physhelp
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Lab 9 Execution Empty delta (1/lambda) and error of slope

Post  guest 01 on Tue Apr 21, 2009 4:33 pm

does anyone knows how to find delta (1/lambda) and error of slope

guest 01
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Lab 9 Execution Empty x

Post  guest000 on Tue Apr 21, 2009 6:32 pm

On excel, it asks for positions, which me and my partner have changed the numbers, meaning we subtracted the distance from the distance where the gas tube was to have the position, those numbers i used for the first table positions, but then wat do we put in for x the table below??

guest000
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Post  physics on Tue Apr 21, 2009 6:45 pm

For x, or the positions of the different colors, just take the difference between your right position and left position and put it into meters.

anyone know how to find relative error in x/2y or error in 1/lambda? thanks

physics
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Lab 9 Execution Empty Error in slope

Post  yeppp on Tue Apr 21, 2009 6:57 pm

To find the error in the slope, you take the calculated relative error of x/2y and multiply it by your calculated 1/lamdba

yeppp
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Lab 9 Execution Empty Re: Lab 9 Execution

Post  yep yep on Tue Apr 21, 2009 6:59 pm

sry that was for delta 1/lambda

yep yep
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Lab 9 Execution Empty lab 9

Post  sara on Tue Apr 21, 2009 9:43 pm

Hey guys

I need help in finding

* Relative error x/2y

* how to find the degree

thanx Smile

sara
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Post  physics on Tue Apr 21, 2009 9:45 pm

For degrees, you do tan-1 of your x/2y value

physics
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Post  sara on Tue Apr 21, 2009 9:49 pm

thanx Smile

I only need Relative error x/2y now

sara
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Post  physics on Tue Apr 21, 2009 10:13 pm

Hi

How do u find these

Lab 9 Execution 69492411

physics
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Lab 9 Execution Empty Error of Slope!

Post  k8 on Wed Apr 22, 2009 12:45 pm

hey the slope is the exact # given on the graph after it it plotted. but, i was wondering how to get error of slope. or if we just make up a number how do we do that? thankss!

k8
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Post  1 on Wed Apr 22, 2009 4:30 pm

relative error in x/2y is just
(errorx/x) for me the error in y was so small i didnt bother calculating it and you dont have to multiply by any value since it is a relative error
how did you find lambda?

1
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Lab 9 Execution Empty rel error

Post  soc on Wed Apr 22, 2009 5:46 pm

just use equation seven in error and analysis to get the relative error

soc
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Lab 9 Execution Empty Error of x

Post  phygirl on Wed Apr 22, 2009 7:33 pm

Im struggling to find the error or x. I thought it would be the same as my other errors (.003m) but its not working... any ideas?

phygirl
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Lab 9 Execution Empty x??

Post  yep on Wed Apr 22, 2009 8:43 pm

hye guys, how you get x? I tried adding together my the distances for each color band and that didn't work, what should I do?

yep
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Lab 9 Execution Empty Re: Lab 9 Execution

Post  phys on Wed Apr 22, 2009 8:56 pm

I still can't figure out

relative error in x/2y


can someone show work or something plz Sad

phys
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Post  phys on Wed Apr 22, 2009 9:04 pm

nevermind i got it
how do u find this out
Lab 9 Execution 69492411

phys
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Lab 9 Execution Empty ERROR OF SLOPE

Post  guest_01 on Wed Apr 22, 2009 9:11 pm

anyone got any ideas on ERROR OF SLOPE??? anything at all???

guest_01
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Lab 9 Execution Empty Re: Lab 9 Execution

Post  girll on Wed Apr 22, 2009 9:12 pm

heyyy
how do u guys find Δ(1/lambda)

girll
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Post  girll on Wed Apr 22, 2009 9:13 pm

guest_01

can u help me with my question so i can see ur question

girll
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Lab 9 Execution Empty error or lambda

Post  guest_01 on Wed Apr 22, 2009 9:34 pm

girll

to find error of lambda you take ur error of x/2y and multiply it by ur 1/lambda

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