Physics · 2011
NEET 2011 · Mains · Code B · Q93
The threshold frequency for a photosensitive metal is 3.3 × 10^14 Hz. If light of frequency 8.2 × 10^14 Hz is incident on this metal, the cut-off…
The threshold frequency for a photosensitive metal is $\displaystyle 3.3 \times 10^{14} \mathrm{~Hz}$. If light of frequency $\displaystyle 8.2 \times 10^{14} \mathrm{~Hz}$ is incident on this metal, the cut-off voltage for the photoelectric emission is nearly :
Official answer
(1)
2V
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