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Dual Nature Of Radiation

AP EAPCET 2024 - 22th May Evening Shift

MCQ+1 / -02024

Light of wavelength $4000\mathop {\rm{A}}\limits^{\rm{o}}$ is incident on a sodium surface for which the threshold wavelength of photoelectrons is $5420 \mathop {\rm{A}}\limits^{\rm{o}}$. The work function of sodium is

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