The work function for Al, K and Pt is 4.28 eV, 2.30 eV and 5.65 eV respectively. Their…
Physics · Class 12 · CBSE — Dual Nature of Radiation & Matter
The work function for Al, K and Pt is 4.28 eV, 2.30 eV and 5.65 eV respectively. Their respective threshold frequencies would be
- Pt > Al > K
- Al > Pt > K
- K > Al > Pt
- Al > K > Pt
Answer
(A) Pt > Al > K
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