Physics

Problem

What is the correct relationship among the stopping potential

V_{\text{stop}}

, the frequency

f

of the incident light, the elementary charge

e

, Planck’s constant

h

, and the work function

\phi

for a photoelectric experiment? a)

eV_{\text{stop}} = hf + \phi

eV_{\text{stop}} = \dfrac{hf - \phi}{2}

eV_{\text{stop}} = \phi - hf

eV_{\text{stop}} = hf - \phi