Q31. When a metallic surface is illuminated with monochromatic light of wavelength λ, the stopping potential is 5V0. When the same surface is illuminated with light of wavelength 3λ, the stopping potential is V0. Then the work function of the metallic surface is:Physics — Dawn of Modern Physics — Question 31 of 217A. Option AB. Option BC. Option CD. Option DPractice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →