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 ▸If a ball is launched at ground level at a velocity v and angle θ, find an expression for it's height at horizontal distance x.
What is the Doppler Effect?
Water flows through an electric shower at a rate of 6kg per minute. Assuming no heat is transferred to the surroundings, what power is required to heat the water by 20K as it flow through the shower?
Topic - force as rate of change of momentum; (i) force on a wall due to water from a hose, (ii) force on a table as a rope is dropped onto it.