Physics · 2010
NEET 2010 · Prelims · Code A · Q41
The potential difference that must be applied to stop the fastest photo electrons emitted by a nickel surface, having work function 5.01 eV, when…
The potential difference that must be applied to stop the fastest photo electrons emitted by a nickel surface, having work function $\displaystyle 5.01$ eV, when ultraviolet light of $\displaystyle 200$ nm falls on it, must be :
Official answer
(3)
-$\displaystyle 1.2$ V
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