Physics · 2013
NEET 2013 · 5 May · Code W · Q37
For photoelectric emission from certain metal the cutoff frequency is ν. If radiation of frequency 2 ν impinges on the metal plate, the maximum…
For photoelectric emission from certain metal the cutoff frequency is $\displaystyle \nu$. If radiation of frequency $\displaystyle 2 \nu$ impinges on the metal plate, the maximum possible velocity of the emitted electron will be (m is the electron mass) :
Official answer
(3)
$\displaystyle \sqrt{2 h \nu / \mathrm{m}}$
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