p39_028

# p39_028 - . 14 10 15 V s, which is in very good agreement...

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28. (a) We calculate frequencies from the wavelengths (expressed in SI units) using Eq. 39-1. Our plot of the points and the line which gives the least squares Ft to the data is shown below. The vertical axis is in volts and the horizontal axis, when multiplied by 10 14 , gives the frequencies in Hertz. 0 0.5 1 1.5 2 2.5 3 3.5 V 2 4 6 8 10 12 f ±rom our least squares Ft procedure, we determine the slope to be 4
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Unformatted text preview: . 14 10 15 V s, which is in very good agreement with the value given in Eq. 39-3 (once it has been multiplied by e ). (b) Our least squares Ft procedure can also determine the y-intercept for that line. The y-intercept is the negative of the photoelectric work function. In this way, we Fnd = 2 . 31 eV....
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## This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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