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.

Related Physics A Level answers

All answers ▸

Explain the advantages of a reflecting telescope compared to a refracting telescope


A 1.6m long string fixed at both ends vibrates at its fundamental frequency... (i)what is this frequency?


A DVD is dropped from rest. The DVD does not reach terminal velocity before it hits the ground. Explain how the acceleration of the DVD varies from the instant it is dropped until just before it hits the ground.


Calculate the threshold wavelength for a metal surface with work function of 6.2 eV.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences