Lab 7 - Physics Lab Lab 7 The Spectrum of the Hydrogen Atom...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Physics Lab Lab 7 – The Spectrum of the Hydrogen Atom Aleksey Zelenberg
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Introduction This experiment consisted of two parts. In the first part, we determined the lattice  grating to an accuracy of five significant figures. In the second part, we measured the  spectrum of the Hydrogen Atom by observing the Balmer Series. By recording the  angles at which the different colors of the Balmer series appear, we determined their  initial energy level n i . The given value of the grating lattice constant (600 lines mm -1 falls within the error range of our calculated value (see Results). In addition, except for  dark purple, the accepted n i  (initial energy level) values all fall within the error range of  our results (see Results).  Procedure i To obtain the grating lattice constant we observed the left and right angles of the first  order yellow line from the spectrum of a helium lamp. We then used the following  equation:
Background image of page 2
In analyzing the spectrum of hydrogen atoms, we repeated the above procedure but  used a hydrogen lamp instead of a helium discharge lamp. We then recorded the left  and   right   angles   of   the   color   strips   corresponding   to   the   Balmer   series:   Red,  Blue/Green, Purple, and Dark Purple. Using the equation above along with Balmer’s  formula:  , we found an expression relating n i , d, and  :  θ Using this and the value of d we found in the procedure above, we determined n
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This lab report was uploaded on 04/08/2008 for the course PHYSICS 1494 taught by Professor Cambareri during the Spring '08 term at Columbia.

Page1 / 10

Lab 7 - Physics Lab Lab 7 The Spectrum of the Hydrogen Atom...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online