11.6 The threshold frequency for a certain metal is

PHYSICS · Subjective · A Level · Physics · Particles and radiation · Particles and radiation

Problem

3.3 \times 10^{14} \mathrm{~Hz}

. If light of frequency

8.2 \times 10^{14} \mathrm{~Hz}

is incident on the metal, predict the cutoff voltage for the photoelectric emission.