The work function of a metal is 4.2 eV , its threshold wavelength will be
Physics · JEE Advanced · NTA Exams — Atoms and Nuclei
The work function of a metal is 4.2 eV, its threshold wavelength will be
- 4000 Å
- 3500 Å
- 2955 Å
- 2500 Å
Answer
(C) 2955 Å
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