week12 - Then tmake a plot of sin(theta) vs. p*lambda...

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This week Please lab report for lab 4 Today we start lab 6 (last lab)
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Hints • for the lines of Hg, instead of the web site listed in the lab, use http:// hyperphysics.phy-astr.gsu.edu/hbase/quantum/atspect2.html •during the part when you are supposed to focus an object that is far away and outside, take your telescope over to the table by the window. There is a sign in the end-most third-floor window. Focus so that you can read this well. • Be sure to read carefully pg 6, 2 nd paragraph. • theta_0 = theta_i • calculate d from 600 lines per millimeter •.
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You should measure all the lines for Hg that you can see for first and second order on both sides of the spectrometer (i.e. four measurements for each line).
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Unformatted text preview: Then tmake a plot of sin(theta) vs. p*lambda (where p is the order -2, -1, 1, or 2), and fit a line to the data to get a slope (1/a) and the error in 1/a as well. you should make four measurements for each of the two lines in sodium, and four measurements for each of the probably four lines that you can see in hydrogen. For each individual line you should do a plot of sin(theta) vs. p to get lambda/a, and that will give you all your lambdas and sigma_lambdas. Then find a lambda average and delta lambda for sodium (compare to Lab 4 - the result is interesting!) And for the Balmer series you can fit 1/lambda to 1/n^2 to get the slope and intercept giving you the Rydberg and the 1/2^2...
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week12 - Then tmake a plot of sin(theta) vs. p*lambda...

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