We´re asked to determine the threshold frequency νo of Cesium (Cs) in Hertz (Hz), given that 1 eV = 1.60x10-19 J.
Remember that the threshold frequency is related to the Photoelectric effect, and is the minimum frequency of a photon that is needed to hit the surface of a metal or atom to release an electron.
In other words, a photon hits the Cs atom and it transfers its energy to an electron, which in turn is released.
What is the threshold frequency ν0 of cesium? Note that 1 eV (electron volt) = 1.60 × 10−19 J. Express your answer numerically in hertz.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Photoelectric Effect concept. You can view video lessons to learn Photoelectric Effect. Or if you need more Photoelectric Effect practice, you can also practice Photoelectric Effect practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Marks' class at ASU.