why does photoelectric emission occur only when there is a certain threshold frequency of incident radiation?

According to the particle theory of light, hf=φ+KEmax, so along with the minimum amount of energy required, there is a minimum frequency as well, φ= hfo. Thus, the incident photon must have a frequency higher than fo for photoelectric emmision to occur.

NP
Answered by Nikolas P. Physics tutor

2611 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

Define electrical resistance


The flow of water in a pipe is turbulent. Define turbulent flow.


A space probe of mass 1000kg, moving at 200m/s, explosively ejects a capsule of mass 300kg. The speed of the probe after the explosion is 250m/s. What is the velocity of the capsule?


Why is the centripetal force necessary for circular motion?


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