Question

Consider an electron of mass (m), accelerated from rest through a potential of 120 V. The de-Broglie wavelength associated with the electron is:

a) (2.75 times 10⁻¹⁰) m
b) (4.32 times 10⁻¹⁰) m
c) (6.63 times 10⁻¹⁰) m
d) (9.81 times 10⁻¹⁰) m