An electron of mass 9.11x10^(-31) is fired from an electron gun at 7x10^6 m/s. What size object will the electron need to interact with in order to diffract?
Momentum of electron=mv=6.377x10^-24 kg m/s
λ=h/mv=6.63x10-34/6.377x10-24=1.039...x10-10=1x10-10m
JG
Related Physics A Level answers
All answers ▸How do I approach this question? Our teacher never explained it in class!
An atom can become excited by the absorption of photons. Explain why only photons of certain frequencies cause excitation in a particular atom.
Why is Kinetic Energy mv^2/2?
What does a negative velocity mean?