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Chemistry · 2018
JEE Main · 15 April 2018, Shift 1 · Q39
Ejection of the photoelectron from metal in the photoelectric effect experiment can be stopped by applying 0.5 V when the radiation of 250 nm is…
Ejection of the photoelectron from metal in the photoelectric effect experiment can be stopped by applying $\displaystyle 0.5$ V when the radiation of $\displaystyle 250$ nm is used. The work function of the metal is :
Official answer
(2)
4.$\displaystyle 5$ eV
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JEE Main 2018 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.