Is a photon a wave or a particle??

This question was answered most famously by Young's double slit experiment. The double slit experiment shows that photons (as well as all light and matter) can be thought of as both a wave AND a particle. As a beam of particles is fired at two slits the beam splits and reforms on the other side of the slits to form a diffraction pattern (wave-like). However, the diffraction patterns are always observed to be created from a build up of descrete points (particle-like). Sometimes we must use a wave model and sometimes a particle model to describe light and matter depending on the behaviour.   

JG
Answered by Jono G. Physics tutor

2018 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

Calculate the threshold frequency for a metal with a work function of 3eV


How does the angle of an inclined plane relate to its efficiency, given the coefficient of friction between a body and the plane?


Explain the photo-electric effect and describe how the intensity of light effects rate of electron emission.


A trolley of mass 0.75kg is running along a frictionless track at a constant speed of 0.7ms-1, as the trolley passes below a mass of 0.5kg the mass drops a short vertical distance onto the trolley. Calculate the new velocity of the trolley and mass.


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