In an experiment to study the photoelectric effect, a
Chapter 3, Problem 83AE(choose chapter or problem)
In an experiment to study the photoelectric effect, a scientist measures the kinetic energy of ejected electrons as a function of the frequency of radiation hitting a metal surface. She obtains the following plot. The point labeled " " corresponds to light with a wavelength of
. (a) What is the value of
in
What is the value of the work function of the metal in units of
of ejected electrons? (c) What happens when the metal is irradiated with light of frequency less than
(d) Note that when the frequency of the light is greater than
, the plot shows a straight line with a nonzero slope. Why is this the case? (e) Can you determine the slope of the line segment discussed in part (d)? Explain.
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