Question: What is the cutoff ( threshold ) frequency for a metal surface that has a work function of 5 . 4 2 eV ? 1

What is the cutoff (threshold) frequency for a metal surface that has a work function of 5.42 eV ?
1.311015Hz
6.041015Hz
3.011015Hz
2.011015Hz
What is the cutoff ( threshold ) frequency for a

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