Physics · 2011
NEET 2011 · Prelims · Code A · Q41
Light of two different frequencies whose photons have energies 1 eV and 2.5 eV respectively illuminate a metallic surface whose work function is 0.5…
Light of two different frequencies whose photons have energies $\displaystyle 1$ eV and $\displaystyle 2.5$ eV respectively illuminate a metallic surface whose work function is $\displaystyle 0.5$ eV successively. Ratio of maximum speeds of emitted electrons will be :
Official answer
(3)
$\displaystyle 1$ : $\displaystyle 2$
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