How to calculate threshold frequency?
Understand the Problem
The question is asking how to determine the threshold frequency, which is the minimum frequency needed to eject electrons from a material in the photoelectric effect. This involves understanding the relationship between frequency and the work function of the material.
Answer
Divide the work function by Planck's constant
The final answer is obtained by dividing the work function by Planck's constant.
Answer for screen readers
The final answer is obtained by dividing the work function by Planck's constant.
More Information
The work function (W) is the minimum energy needed to eject an electron from a material. By dividing it by Planck's constant, you get the threshold frequency, which is the minimum frequency of incoming light needed to eject electrons.
Tips
A common mistake is forgetting to ensure the units of the work function and Planck's constant are consistent, which can lead to incorrect calculations.
Sources
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