PROBLEM 2 Examine the table below for the work functions of a few metals. Choose three metals and compute the minimum frequency of light required to eject electrons in each case. Metal Work Function (in eV) 2.30 Minimum Frequency Potassium Sodium 2.75 Aluminum 4.28 Tungsten 4.55 Copper 4.64 Iron 4.70 Gold 5.10
PROBLEM 2 Examine the table below for the work functions of a few metals. Choose three metals and compute the minimum frequency of light required to eject electrons in each case. Metal Work Function (in eV) 2.30 Minimum Frequency Potassium Sodium 2.75 Aluminum 4.28 Tungsten 4.55 Copper 4.64 Iron 4.70 Gold 5.10
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter12: Electronic Control Devices
Section: Chapter Questions
Problem 14RQ
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In the above given question they have mentioned some of the materials such as potassium, sodium, aluminium, tungsten, copper, iron and gold.
Here they have also mentioned work function of each materials work function is also known as energy gap of the material.
From the standard relationship of the work function and wavelength we need to calculate the value of frequency.
From the above relationship we will get the value of wavelength in micrometres.
The relationship between velocity of light and wavelength we have calculated the frequency of each materials.
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