solve' d' only A certain photoelectric devise is sensitive towavelengths up to 940 nm.a. What is the frequency associated withthis wavelength?b. What is the work function for the cathodeif the threshold wavelength is 890 nm?c. What is the frequency of 690 nm light?d. If light with a wavelength of 690 nmstrikes the photocathode, what is themaximum kinetic energy ofthe emitted electrons?

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Answered: d. If light with a wavelength of 690 nm…

d. If light with a wavelength of 690 nm strikes the photocathode, what is the maximum kinetic energy of the emitted electrons?

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter9: Pre-quantum Mechanics

Section: Chapter Questions

Problem 9.39E: The photoelectric effect is used today to make light-sensitive detectors; when light hits a sample...

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Question

solve' d' only

A certain photoelectric devise is sensitive to
wavelengths up to 940 nm.
a. What is the frequency associated with
this wavelength?
b. What is the work function for the cathode
if the threshold wavelength is 890 nm?
c. What is the frequency of 690 nm light?
d. If light with a wavelength of 690 nm
strikes the photocathode, what is the
maximum kinetic energy of
the emitted electrons?

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