Question

How is the work function related to the threshold frequency \[\nu_0\]?

Options

• \[\phi_0=h\nu_0\]

• \[\phi_0=\nu_0/h\]

• \[\phi_0=h+\nu_0\]

• \[\phi_0=h/\nu_0\]

Answer 1

At the threshold frequency, photon energy equals the work function: \[\phi_0=h\nu_0\]. This is the minimum frequency at which photoelectric emission can occur.