Relativistic corrections become neccssary when the expression for the kinetic energy 1/2 mv2 , becomes comparable with mc2, where m is the mass of the particle. At what de Broglie wavelength will relativistic corrections become important for an electron?
(a) λ =10nm (b) λ =10–1nm (c) λ =10–4nm (d) λ =10–6nm