Photoelectric Effect
The concept of the Photoelectric Effect was introduced and how light modeled as a particle can explain this, while light modeled as a wave cannot.
The above video explains the Photoelectric Effect using a PhET application which I encourage you to use and experiment with.
This can be found at:
Planck's Constant h = 6.63 x 10-34 Js
Energy of a Photon E = hf
Threshold Frequency fo , the frequency of incident photons that have an energy equal to the work function of the metal
Work Function φ = energy required to free an electron from a specific metal (J)
Maximum Kinetic Energy, Ek, of a freed electron by an incident photon:
Ek = hf - φ
Homework: Activity 11B from your textbook
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