The photoelectric current from Na (work function, w0 = 2.3 eV) is stopped by the output voltage of the cell
Pt(s)|H2 (g, 1bar)|HCl(aq., pH = 1)|AgCl(s)|Ag(s) The pH of aq. HCl required to stop the photoelectric current from K(w0 = 2.25eV), all other conditions remaining the same, is_____ × 10–2 (to the nearest integer).