He work function of a certain metal is 1.90 ev. what is the longest wavelength of light that can cause photoelectron emission from this metal? (1 ev = 1.60 × 10-19 j, c = 3.00 × 108 m/s, h = 6.626 × 10-34 j ∙ s)

Which lists correctly orders nuclear reactions from most radioactive waste generated to least waste generated within a given period of time? o a. radioactive decay, nuclear fission, nuclear fusion o b. radioactive decay, nuclear fusion, nuclear fission o c. nuclear fusion, nuclear fission, radioactive decay o d. nuclear fission, nuclear fusion, radioactive decay