Exp 7 - graph (calibration curve)

[robert zellmer]

For exp 7 you need to make a calibration curve to relate your scale 
readings to wavelength.
You use the H spectrum to do this.

Look on page 73 (top of page) for an explanation.  You graph wavelength 
versus scale readings.
It should be a smooth curve (not a linear fit).  If using Excel it will 
give you an eqn. relating wavelength
to scale reading which you can use to calc. the wavelengths for He by 
substituting the scale readings for He.
An easy way to do this would be to make Table 7.2 on page 72 in Excel 
(at least the scale readings)
and program your eqn into the table.

Dr. Zellmer