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diff --git a/pe-effect.tex b/pe-effect.tex index 8c17433..760ef13 100644 --- a/pe-effect.tex +++ b/pe-effect.tex @@ -184,7 +184,7 @@ leaks off. \begin{enumerate} \item -Use the table in Fig.~\ref{fig:mercury_spectrum} to find the exact frequencies and wavelengths of the spectral lines you used and plot the measured stopping potential values versus light frequency for of measurements of the first and second order lines (can be on same graph). +Use the table in Fig.~\ref{fig:mercury_spectrum} to find the exact frequencies and wavelengths of the spectral lines you used and plot the measured stopping potential values versus light frequency for measurements of the first and second order lines (can be on same graph). \item Fit the plots according to $eV_0 = h\nu-\phi$, extracting values for slopes and intercepts. Find the average value for slope and its uncertainty. From the slope, determine $h$ counting $e=1.6\cdot10^{-19}$~C. Do your measured values agree with the accepted value of $h=2\pi\cdot 10^{-34}$J$\cdot$s within experimental uncertainty? |