PhysicsMedium145×since 2002Q6664The threshold frequency of a metal with work function 6.63 eV6.63 \mathrm{~eV}6.63 eV is :A16×1015 Hz16 \times 10^{15} \mathrm{~Hz}16×1015 HzB16×1012 Hz16 \times 10^{12} \mathrm{~Hz}16×1012 HzC1.6×1015 Hz1.6 \times 10^{15} \mathrm{~Hz}1.6×1015 HzD1.6×1012 Hz1.6 \times 10^{12} \mathrm{~Hz}1.6×1012 HzCheck answerSkip