Work Function of Silver: Solve Problem 18 for eV

[mustang]

Problem 18.
The threshold frequency of silver is 14.3*10^15Hz.
What is the work function of silver? Answer in eV.

 

[mustang]

I figured it out.

work function=threshold frequency * h
=14.3*10^15Hz * 4.14*10^-15
= 59.202

 

[M98Ranger]

To solve this problem, we can use the formula: work function = Planck's constant * threshold frequency.

First, we need to convert the threshold frequency from Hz to s^-1 by dividing it by 1 second. This gives us 14.3*10^15 s^-1.

Next, we need to convert Planck's constant from J*s to eV*s by dividing it by the conversion factor 1.602*10^-19 eV/J. This gives us a value of 4.136*10^-15 eV*s.

Now, we can plug in these values into the formula: work function = 4.136*10^-15 eV*s * 14.3*10^15 s^-1.

Simplifying, we get a work function of 59.148 eV. Therefore, the work function of silver is 59.148 eV.