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प्रश्न
The threshold wavelength for a metal surface whose photoelectric work function is 3.313 eV is __________.
पर्याय
4125 Å
3750 Å
6000 Å
2062.5 Å
उत्तर
The threshold wavelength for a metal surface whose photoelectric work function is 3.313 eV is 3750 Å.
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