Ramsauer-Townsend equation. Joules or eV?

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The Ramsauer-Townsend equation involves the transmission coefficient T, which depends on energy E and potential V0. It is crucial that both E and V0 are expressed in the same units for the equation to be valid. While Joules is a common choice, using electronvolts (eV) is also acceptable as long as consistency is maintained. The ratio E/V0 will yield the same result regardless of the unit choice, provided they match. Ultimately, the focus should be on unit consistency rather than the specific unit used.
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Homework Statement



There is a Ramsauer-Townsend equation in my notes for transmission.

It's difficult to write out but looks somewhat like:

T = {1 + {(sin k a)^2 / 4E/V0 (E/V0 - 1)}}

Of course E and V0 should be in the same units.

But should they both in Joules or eV?

I would think Joules myself.

Thank you!


Homework Equations





The Attempt at a Solution

 
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It doesn't matter once they both have the same units.

E/V0 will work out the same as it is calculating a ratio.
 
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