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NCERT
The ejection of a photoelectron from silver metal can be stopped by applying a voltage of 0.35 V when radiation of 256.7 nm is used. Calculate the work function for silver metal in eV. (1 eV = 1.602 x 10⁻¹⁹ J, h = 6.626 x 10⁻³⁴ J s, c = 3.00 x 10⁸ m s⁻¹)