Q199. The stopping potential for electrons ejected by 6.4x1014Hz electromagnetic radiation incident on a certain sample is 1.8V. The kinetic energy of the most energetic electrons ejected and the work function of the sample, respectively, are:Physics — Dawn of Modern Physics — Question 199 of 217A. 1.8 eV , 2.8 eVB. 1.8 eV , 4.6 eVC. 1.8 eV , 0.8 eVD. 2.8 eV , 1.0 eVPractice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →