Teaching HTET PGT Level 3 - 2024 Mock Test Physics Dual Nature: Photon and Matter Waves The Photoelectric Effect

The threshold frequency of a metal with work function 6.63 eV is: 

1
16 × 1015 Hz
2
16 × 1012 Hz
3
1.6 × 1012 Hz
4
1.6 × 1015 Hz
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