light : Wavelength to wavenumbers
light : Wavelength to wavenumbers
by R on 02/16/05 at 18:04:55
Can't find these conversion (on this site)
nm to eV
nm to cm-1
this should be added .... ( or maybe i'm just blind!!)
thx
Re: light : Wavelength to wavenumbers
by Robert Fogt on 02/16/05 at 18:14:25
nm is a unit of length, while eV is a unit of energy or mass.
Is this for frequency?
Re: light : Wavelength to wavenumbers
by Robert Fogt on 02/16/05 at 18:18:06
Nevermind, did not read the subject very well before I answered.
wavenumber = 1/wavelength
I have added that to my to-do list. I will try to have something up soon. I am a bit behind, but I will have it up eventually.
Re: light : Wavelength to wavenumbers
by R on 02/16/05 at 20:18:46
Thank you... for the nm to cm-1 I was to convinced that there would be a constant of some sort somewhere that I didn't see the obvious....
and for the nm to eV conversion , at first I was to lazy to make the calculation myself but now here's the formula
E (J) = c * h / lambda
where
c = 3E8 ms-1
h = 6.63E-34 js
and the joule to eV conversion is 1eV = 1,602E-19 J
(one eV is the energy gained by an electron when accelerated throught a difference of potential of 1V)