Q11. All electrons ejected from a surface by incident light of wavelength 200 nm can be stopped before travelling 1 m in the direction of a uniform electric field of 4N/C. The work function of the surface is:Physics — Dawn of Modern Physics — Question 11 of 217A. 4eVB. 6.2 eVC. 2 eVD. 2.2 eVPractice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →