Explain the wave - particle duality

If electrons are fired through a thin piece of graphite towards a screen an interference pattern forms.We can explain this by thinking of the electrons as having a wavelength, called the de Broglie wavelength. Electrons can be calculated to have wavelengths comparable to the spacing between the atoms in the graphite. As such, it diffracts on passing between atoms and interferes with itself.It is important to highlight that each individual electron lands in one place and this pattern emerges when many electrons are fired through. This, and other compelling evidence, suggests it is better to think of these waves as probability waves, not anything physically real.

Answered by Physics tutor

1588 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

What is the difference between free vibrations and forced vibrations?


What is Newtons third law of motion?


An object orbits Earth at an altitude of 200 kilometers above the planet’s surface. What is its speed and orbital period?


The LHC accelerates protons to a speed of 0.999999991c around a 27km ring. Due to relativistic effects, their mass increases. Given that the magnetic fields used are 8T, calculate this mass. What is the total energy of an LHC beam containing 3e14 protons?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences