Physics · 2024
JEE Main · 6 April 2024, Shift 2 · Q47
When UV light of wavelength 300 nm is incident on the metal surface having work function 2.13 eV, electron emission takes place. The stopping…
When UV light of wavelength $\displaystyle 300$ nm is incident on the metal surface having work function $\displaystyle 2.13$ eV , electron emission takes place. The stopping potential is:
(Given $\displaystyle \mathrm{hc}=1240 \mathrm{eV} \mathrm{nm}$ )
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle 2$ V
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JEE Main 2024 Physics question, with the answer from NTA’s final answer key. Where our answers come from.