Question: If a photoelectric material has a work function , the threshold wavelength for the material is given by (a) hc (b) hf hc (c) (d)

If a photoelectric material has a work function ϕ, the threshold wavelength for the material is given by

(a) hc (b) hf hc (c) (d) e (e) $ hf

(a) hc (b) hf hc (c) (d) e (e) $ hf

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