Answer only number 1 Photoelectric EffectMaterial(eV)1. The cutoff wavelength for the photoelectric effect in a certainmetal is 254 nm. (a) What is the work function for that metal?(b) Will the photoelectric effect be observed forl>254 nm orfor 1 < 254 nm?Na2.28Al4.08Co3.90Cu4.702. When light of wavelength A illuminates a copper surface, thestopping potential is V. In terms of V, what will be thestopping potential if the same wavelength is used toilluminate a sodium surface?Zn4.31Ag4.73Pt6.35Pb4.14

The solution of question number 1,is

Answered: The cutoff wavelength for the…

The cutoff wavelength for the photoelectric effect in a certain metal is 254 nm. (a) What is the work function for that metal?

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter6: Photons And Matter Waves

Section: Chapter Questions

Problem 71P: A 600-nm light falls on a photoelectric surface and electrons with the maximum kinetic energy of...

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Question

Answer only number 1

Photoelectric Effect
Material
(eV)
1. The cutoff wavelength for the photoelectric effect in a certain
metal is 254 nm. (a) What is the work function for that metal?
(b) Will the photoelectric effect be observed forl>254 nm or
for 1 < 254 nm?
Na
2.28
Al
4.08
Co
3.90
Cu
4.70
2. When light of wavelength A illuminates a copper surface, the
stopping potential is V. In terms of V, what will be the
stopping potential if the same wavelength is used to
illuminate a sodium surface?
Zn
4.31
Ag
4.73
Pt
6.35
Pb
4.14

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