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IP Zinc and cadmium have photoelectric work functions
Chapter 30, Problem 31P(choose chapter or problem)
Problem 31P
IP Zinc and cadmium have photoelectric work functions given by WZn = 4.33 eV and WCd = 4.22 cV, respectively, (a) If both metals are illuminated by UV radiation of the same wavelength, which one gives off photo electrons with the greater maximum kinetic energy? Explain, (b) Calculate the maximum kinetic energy of photoelectrons from each surface if λ = 275 nm.
Questions & Answers
QUESTION:
Problem 31P
IP Zinc and cadmium have photoelectric work functions given by WZn = 4.33 eV and WCd = 4.22 cV, respectively, (a) If both metals are illuminated by UV radiation of the same wavelength, which one gives off photo electrons with the greater maximum kinetic energy? Explain, (b) Calculate the maximum kinetic energy of photoelectrons from each surface if λ = 275 nm.
ANSWER:
Step 1 of 3
a)
Here, we have to find if both the metals are illuminated by same UV ray, then which one will produce photoelectrons with greater kinetic energy.
Given that,
.