What is the maximum wavelength of light that can cause the photoelectric effect in a metal with a work function of 2.0 eV?
Practice Questions
1 question
Q1
What is the maximum wavelength of light that can cause the photoelectric effect in a metal with a work function of 2.0 eV?
620 nm
400 nm
500 nm
300 nm
The maximum wavelength λ_max can be calculated using λ_max = hc/E, where E = 2.0 eV = 3.2 x 10^-19 J. Thus, λ_max = (6.63 x 10^-34 * 3 x 10^8) / (3.2 x 10^-19) = 620 nm.
Questions & Step-by-step Solutions
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Q
Q: What is the maximum wavelength of light that can cause the photoelectric effect in a metal with a work function of 2.0 eV?
Solution: The maximum wavelength λ_max can be calculated using λ_max = hc/E, where E = 2.0 eV = 3.2 x 10^-19 J. Thus, λ_max = (6.63 x 10^-34 * 3 x 10^8) / (3.2 x 10^-19) = 620 nm.
