Plotting energy as a function of wavelength

Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
1 reply · 1K views
Dextrine
Messages
102
Reaction score
7

Homework Statement



Given work function W=2eV
Plot energy of an electron knocked off with respect to wavelength

Homework Equations


E=hv-W

The Attempt at a Solution


E=h (c/(lambda))-2
I plotted this and I get a function that goes to infinity with zero wavelength and crosses the x-axis at 6000 angstroms. I was just wondering if this shape of graph makes sense of if I'm just way off[/B]
 
Physics news on Phys.org
Very small wavelengths correspond to gamma rays, and the energy diverges if you go close to zero.
Yes, that is the expected shape for the maximal energy of electrons.