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 ▸What is an equipotential in an electric/gravitational field?
An alpha particle is accelerated with 5MeV of kinetic energy towards the nucleus of a gold atom with atomic number 79. What is the distance of closest approach that is reached by the alpha particle?
What is the 'centre of gravity' of an object and how do I calculate it?
How can a car be changing velocity yet not changing speed?