To what maximum potential will a zinc plate be charged if it is irradiated with monochromatic light with

To what maximum potential will a zinc plate be charged if it is irradiated with monochromatic light with a wavelength of 3.24 * 10 ^ -7 m? The work function of the electron from zinc 5.98 * 10 ^ -19 J. Electron charge: 1.6 * 10 ^ -19 Cl.

According to the formula:
h * v = Aout + e * U;
v = c / a;
U = 1 / e * ((h * c / a) – Avyh);
A = 5.98 * 10 ^ (- 19);
q: = 1.6 * 10 ^ (- 19);
h: = 6.63 * 10 ^ (- 34);
L: = 3.24 * 10 ^ (- 7);
v: = 3 * 10 ^ 8 / L;
U = 0.0993.
Answer: the maximum charge potential will be equal to U = 0.1V or 100mV.