阿摩線上測驗
登入
阿摩線上測驗
登入
18. If the work function for a certain metal is 1.80 eV, what is the stopping potential (V) for electrons ejected from the metal when light of wavelength 350 nm shines on the metal? (A) 0.844 (B) 3.82 (C) 1.74 (D) 4.67 (E) 1.01