Wednesday
April 16, 2014

Homework Help: physics

Posted by Jennifer on Tuesday, April 5, 2011 at 6:21am.

a) If a photon and an electron each have the same energy of 20.0 eV, find the wavelength of each.
b) If a photon and an electron each have the same wavelength of 250 nm, find the energy of each.
c) You want to study an organic molecule that is about 250 nm long using either a photon or an
electron microscope. Approximately what wavelength should you use and which probe, the electron or
the photon, is likely to damage the molecule least?

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