Einstein's Photoelectric Equation is :
Kmax = hv - Φ
where v is the frequency of the incident radiation and Kmax is the maximum possible kinetic energy of photoelectron. The work function Φ is given as :
Φ = hv0 . In terms of stopping potential, Kmax = eV0.
What is the charge on a photon?
Answer & explanation
Correct answer: option 3
The correct answer is Option 3 : same as neutron
A photon has no electric charge, just like a neutron. Therefore, the charge on a photon is zero (neutral).