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 ▸A rock has a mass of 100g and it is thrown across a pond at a speed of 30ms^-1. Calculate the de Broglie wavelength of the rock and explain whether you can see the wave produced.
What is the Strong Nuclear Force?
A ball is released from height h w.r.t. the ground. Draw a qualitative height versus time diagram of the ball bouncing in a non-ideal case.
Why does a small puddle of water evaporate at room temperature, even though the temperature is way below the boiling point of water?