If threshold wavelength for sodium is 6800Å then the work functio… - Vidyadip

Question

If threshold wavelength for sodium is 6800Å then the work function will be(a) 1.8 eV (b) 2.5 eV(c) 2.1 eV (d) 1.4 eV

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Answer

(a) 1.8 eV

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