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 "v0" corresponds to light with a wavelength of 680 nm.
(a) What is the value of v0 in s-1?
(b)What is the value of the work function of the metal in units of kJ/mol of ejected electrons?
(c) What happens when the metal is irradiated with light of frequency less than v0?
(d) Note that when the frequency of the light is greater than v0, the plot shows a straight line with a nonzero slope. Why is this case?
(e) Can you determine the slope of the line segment discussed in part (d)? Explain.

Transcribed Image Text:

Vo Frequency