λ=(v/f)
I guess this gives that minimum wavelength is 0 when its velocity is zero.Velocity=0 is possible in today's laboratories where they are isolated from everywhere.
If this has something to do with inertial frames or so please tell me.I guess the question has been asked in a sarcastic way so you have something hot to put here.
λ and f are not independent quantities in the equation. And according to quantum uncertainity the electron velocity never can reach zero!
The question is not sarcastic at all. The purpose of question was as follows:
The resolution of electron lithography depends on wavelength of electron beam. The question is how much we can reduce the wavelength of electron beam and consequently what is the best resolution of e-beam lithography that one can achieve?