the work function of a metal surface is 3.4eV. what is the frequency of a photon which ejects an electron from this surface at 220 km/s?
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Answer:
7.9*10^14
Explanation:
einsteins equation
hv=hv0+ke
Given:
The work function of a metal surface is 3.4eV.
To find:
Frequency of a photon which ejects electron from the metal surface at a speed of 220 km/s.
Calculation:
Applying Einstein's Equation of Photoelectric Effect:
So, final answer is: