Lab 7 Excel Execution

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Lab 7 Excel Execution Empty Lab 7 Excel Execution

Post  k8 on Tue Mar 24, 2009 4:01 pm

Hey do u guys know how to get the error of the slope?

k8
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Lab 7 Excel Execution Empty Delta 2x and x

Post  guest 00 on Tue Mar 24, 2009 5:15 pm

how do you get delta 2x and x and what is the SI unit for x????

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Lab 7 Excel Execution Empty Delta 2x n x

Post  cutiepie on Tue Mar 24, 2009 6:27 pm

Delta2x was given .0005m & x=.00025m

Any1 know how to get the slope error and hair diameter etc.

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Lab 7 Excel Execution Empty Laser wavelength

Post  Physics1 on Tue Mar 24, 2009 8:26 pm

Were we suppose to record the wavelength from the laser itself or do we calculate it?
Thanx

Physics1
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Post  Kathleen on Tue Mar 24, 2009 10:34 pm

The wavelength was noted in the manual, i think its like 632 nm or something around there. not sure though so double check, and convert it to meters

Hair diameter by diffraction can be found using the equation we formulated in the lab prep

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Lab 7 Excel Execution Empty Error in b

Post  jsyz on Wed Mar 25, 2009 12:21 am

HOW DO WE CALCULATE THE ERROR IN B? Question

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Lab 7 Excel Execution Empty Error of slope

Post  cutiepie on Wed Mar 25, 2009 1:11 pm

How do we get error of a slope?

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Lab 7 Excel Execution Empty B

Post  yikes on Wed Mar 25, 2009 3:34 pm

I couldn't find the hair diameter from diffraction (B). I tried using the m*lambda=b(x/D) but it didn't work. As for the lab prep, we found something like b = D*lambda/s, but what is that 's'?

thanks

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Post  1 on Wed Mar 25, 2009 4:50 pm

what the heck is s for the hair diameter for diffraction?
the error for it is probably ( cant test it since i don't have s)
rel error = sqrt(((DeltaD/D)^2)+((Deltas/s)^2)) either that or
rel error = sqrt(((DeltaD/D)^2)+((Deltas/s)^2))*b

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Post  1 on Wed Mar 25, 2009 4:57 pm

Cant edit....
i am an idiot S is slope
so B=D*lamda/slope
error = sqrt(((DeltaD/D)^2)+((Deltas/s)^2))*b

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Post  ! on Wed Mar 25, 2009 10:07 pm

I have tried sooo many numbers and I can't get any slope errors to work on my excel sheet. Does anyone have any ideas what the error in slope should be?

!
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Lab 7 Excel Execution Empty error of slope!

Post  guest_01 on Wed Mar 25, 2009 11:15 pm

does anyone have any idea how to get error of slope??? im lost and its the only thing i need..plzzz help! thanks

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Lab 7 Excel Execution Empty error in slope

Post  f on Thu Mar 26, 2009 11:05 am

Professor,

I've been plugging in values for the slope for a while now. You mentioned above that if might turn green because one or two of the points aren't on the line. This is not the case for my graph, any other ideas as to why it would not turn green?

f
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Lab 7 Excel Execution Empty error of Hair diameter from micrometer

Post  :) on Thu Mar 26, 2009 5:55 pm

hey guys, is there a forumula for this, or is it just a estimate? how did you guys figure an estimate?

thanks Smile

:)
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Post  DJ on Thu Mar 26, 2009 9:15 pm

Smile wrote:hey guys, is there a forumula for this, or is it just a estimate? how did you guys figure an estimate?

thanks Smile

.0001 or similar.

You can use the preliminary deviation from 0.

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Post  helppp on Thu Mar 26, 2009 9:24 pm

Can anybody help me with the questions regarding double slit interference. I am having a very difficult time understanding this.

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Post  DJ on Fri Mar 27, 2009 6:54 pm

helppp wrote:Can anybody help me with the questions regarding double slit interference. I am having a very difficult time understanding this.

The answer should be in question five of the pre-lab.

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Post  Jimmy on Tue Mar 31, 2009 12:02 pm

Can anybody explain to me the reasoning behind the "many slits, goin toward the diffraction grating" on the last execution sheet?

Much appreciated!

Jimmy
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