Dual Nature of Radiation and Matter

Question: The work function of a photoelectric material is 3.3 eV. The threshold frequency will be equal to



1) $8 \times {10^4}Hz$
2) $8 \times {10^{56}}Hz$
3) $8 \times {10^{10}}Hz$
4) $8 \times {10^{14}}Hz$
Solution: Explanation: No Explanation
Photon and Photoelectric Effect

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