Physics · 2012
NEET 2012 · Mains · Code C · Q85
Two radiations of photons energies 1 eV and 2.5 eV, successively illuminate a photosensitive metallic surface of work function 0.5 eV. The ratio of…
Two radiations of photons energies $\displaystyle 1$ eV and $\displaystyle 2.5$ eV, successively illuminate a photosensitive metallic surface of work function $\displaystyle 0.5$ eV. The ratio of the maximum speeds of the emitted electrons is :
Official answer
(4)
$\displaystyle 1$ : $\displaystyle 2$
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NEET (UG) 2012 Physics question, with the answer from NTA’s final answer key. Where our answers come from.