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Homework Statement
A metal gives off photoelectrons with maximum kinetic energy Kmax at the rate of N per second when a beam of light of wavelength λ shines on it. How will Kmax and N change if the intensity (brightness) of light is doubled? Assume 100% efficiency.
Homework Equations
hc/wavelength=? then. P/?=
h=planks constant
c= speed of light
p=power
The Attempt at a Solution
kinetic energy will remain the same
n will double
Im not sure how to do this problem
if the brightness doubles, will the frequency double? or the wavelength?
and I am not sure how that would affect n per second
so what I am basically asking is. Is the intensity of light related to the frequency, and if so, in what way?
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