The work function for silver is 4.73 eV. (a) Convert the value of the work funct
ID: 1381012 • Letter: T
Question
The work function for silver is 4.73 eV.
(a) Convert the value of the work function from electron volts to joules.
(b) Find the cutoff frequency for silver.
(c) What maximum wavelength of light incident on silver releases photoelectrons from the silver's surface?
(d) If light of energy 7.1 eV is incident on silver, what is the maximum kinetic energy of the ejected photoelectrons? Give the answer in electron volts.
(e) For photons of energy 7.1 eV, what stopping potential would be required to arrest the current of photoelectrons?
Explanation / Answer
a)1 Joule = 6.24 x 10^18 eV
1 eV = 1.6 x 10^-19 J
4.73ev=4.73*1.6*10^-19
=7.56*10^-19J
b) ? = hc/?.
where ? = work function
?= (6.62607
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.