Physics · 2024
JEE Main · 30 January 2024, Shift 1 · Q46
The work function of a substance is 3.0 eV. The longest wavelength of light that can cause the emission of photoelectrons from this substance is…
The work function of a substance is $\displaystyle 3.0$ eV . The longest wavelength of light that can cause the emission of photoelectrons from this substance is approximately;
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle 414$ nm
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JEE Main 2024 Physics question, with the answer from NTA’s final answer key. Where our answers come from.