The photoelectric threshold wavelength of silver is 3250 × $10^{–10}$ m. The velocity of the electron ejected from a silver surface by ultraviolet light of wavelength 2536 × $10^{–10}$ m is (Given h = 4.14 × $10^{–15}$ eVs and c = 3 × $10^8$ $ms^{–1}$)