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Dual Nature of Radiation and Matter — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsDual Nature of Radiation and Matter1 Mark
Question
Write the relation between threshold frequency and work function.
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Answer

$hv _0=\phi_{ 0 }$ or $v_0=\frac{\phi_0}{h}$.

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