Einstein's Equation: Calculate Frequency of Proton

[chikis]

Homework Statement

Calculte the frequency of the proton with a kinetic energy of 1.97*10^-16ev if the work function of the metal is 1.33*10^-16
(IeV=1.6*10^-19J, h=6.60*10^-34Js

Homework Equations

E = hf-hfo=hf-Wo

Where E= maximum kinetic energy

h= Plancks's constant
Wo=hfo=work function

f=frequency of the incidented light

The Attempt at a Solution

from E = hf-Wo, we have

f = E+Wo/h
f = 1.97*10^-16+1.33*10^-16/6.60*10^-34

What about the IeV=1.6*10^-19J?

Where can I subtitute that one into?

 

[voko]

The problem's statement does not make sense. Einstein's equation, which is presumably the one dealing with photoelectric emission, is about electrons and photons, not protons.

What is really given and what is required to determine?

 

[chikis]

The problem's statement does not make sense. Einstein's equation, which is presumably the one dealing with photoelectric emission, is about electrons and photons, not protons.

What is really given and what is required to determine?

The problem says:

Calculte the frequency of the proton with a kinetic energy of 1.97*10^-16ev if the work function of the metal is 1.33*10^-16
(IeV=1.6*10^-19J, h=6.60*10^-34Js

 

[haruspex]

Calculte the frequency of the proton with a kinetic energy of 1.97*10^-16ev if the work function of the metal is 1.33*10^-16

Fairly clearly 'proton' is a typo for 'photon'

(IeV=1.6*10^-19J, h=6.60*10^-34Js

Another typo: should be '1ev'

from E = hf-Wo, we have
f = E+Wo/h

I hope you mean f = (E+Wo)/h

 

[chikis]

Fairly clearly 'proton' is a typo for 'photon'

Another typo: should be '1ev'

I hope you mean f = (E+Wo)/h

Yes!