IDNLearn.com offers a user-friendly platform for finding and sharing knowledge. Ask your questions and receive reliable, detailed answers from our dedicated community of experts.

Gold has a work function, Φ, of 5.47 ev. If a sample of gold is bombarded with 185 nm photons, what will be the velocity (in m/s) of the photo-ejected electrons? (1 eV = 1.60 × 10⁻¹⁹ J, the mass of an electron is 9.109 x 10⁻³¹ kg, and Planck's constant is 6.626 x 10⁻³⁴ Js.)