What Is the Cutoff (Threshold) Frequency for a Metal Surface $5.42 \mathrm { eV }$

Multiple Choice

What is the cutoff (threshold) frequency for a metal surface that has a work function of $5.42 \mathrm { eV }$ ? (1 $\left. \mathrm { eV } = 1.60 \times 10 ^ { - 19 } \mathrm {~J} , h = 6.626 \times 10 ^ { - 34 } \mathrm {~J} \cdot \mathrm { s } \right)$

A) $1.31 \times 10 ^ { 15 } \mathrm {~Hz}$
B) $5.02 \times 10^{15} \mathrm {~Hz}$
C) $3.01 \times 10^{15} \mathrm {~Hz}$
D) $6.04 \times 10^{15} \mathrm {~Hz}$
E) $2.01 \times 10^{15} \mathrm {~Hz}$