lab 9 prep

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lab 9 prep Empty lab 9 prep

Post  guest_01 on Sat Apr 18, 2009 1:08 pm

any ideas for #3?

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lab 9 prep Empty Question 1

Post  student7 on Sat Apr 18, 2009 8:07 pm

1 inch = 0.0254meters

grooves/inch * inch/0.0254meters = answer, units = 1/m

part b

1 meter/ answer from part a units = m

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lab 9 prep Empty #3

Post  phystude on Sat Apr 18, 2009 8:19 pm

anyone get the first box for the #3? i tried so many things...just can't figure it out. please help! thanks

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lab 9 prep Empty #3

Post  :-) on Sat Apr 18, 2009 9:06 pm

The first box on this page is just the formula,
so dsin(theta) = m*lambda (put into the box whats in bold.)

:-)
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lab 9 prep Empty can you explain number 1 again

Post  hey on Sun Apr 19, 2009 1:46 am

Hey can you explain number one again its not working when i type in unit and answer.

hey
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lab 9 prep Empty # 3

Post  User X on Sun Apr 19, 2009 3:47 am

I'm having problems with question 3, if anyone can help.

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lab 9 prep Empty Re: lab 9 prep

Post  guestxxx on Sun Apr 19, 2009 2:51 pm

How about number 2?

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Post  joecool on Sun Apr 19, 2009 3:52 pm

The answers for two are pretty much already posted. For three the answer comes directly from the question. They tell you E = hc/lambda = 13.6 * (1/2^2 - 1/n^2) . All you have to do is rearrange and substitute. Then go to : rydberg constant. It will be in giant bold letters and numbers. Highlight that and hit ctrl+c then go back into maple ta and press ctrl+v. Those are the shortcuts for copy and paste. And then for the last part the answer is the smae things as 1097928374-1097928374=x where x is the answer.

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Post  joecool on Sun Apr 19, 2009 3:53 pm

*google : rydberg constant

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lab 9 prep Empty question 2

Post  sjames on Sun Apr 19, 2009 7:57 pm

can someone please help with number 2?

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lab 9 prep Empty lab 9 # 3

Post  User X on Sun Apr 19, 2009 8:07 pm

I'm still having problems with the first part of question 3.
What exactly do we insert for that one and why?

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lab 9 prep Empty question 2 and 3

Post  sck105 on Sun Apr 19, 2009 8:32 pm

I am having trouble with number 2 and 3 as well. Please help.

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lab 9 prep Empty Re: lab 9 prep

Post  helping on Sun Apr 19, 2009 9:26 pm

Question 1:

Value/0.0254 m^-1
1/(Answer from the previous part) m

Question 2:

m*lambda
1.051. If different, plug in your values into the above equation.
m=2. If different, play around with the choices.
0.712. If different, plug in your values into the above equation.
Visible. If different, play around with the choices.

Question 3:

1/(h*c)
1.097E7m^-1
0

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