Define the terms (a) threshold frequency, and (b) stopping potential. How were these terms incorporated in Einstein’s photoelectric equation ?

 

 
 
 
 
 

Answers (1)
S safeer

(a)  Threshold frequency(\nu_0) = The minimum frequency that's required for emission of electrons from a metal surface when electromagnetic radiation falls on the metal surface

b) Stopping potential (V_0)

It is the necessary potential applied externally to prevent the most energetic electron from reaching the endplate.

Eienstiens Photoelectric equation

KE_{max}=hv-hv_{o}

eV_{o}=hv-hv_{o}

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