Categories > Dual Nature of Radiation and Matter > Photon and Photoelectric Effect > The work function of a metallic surface is 5.01 eV. The photo-electrons are emitted when light of wavelength 2000Å falls on it. The potential difference applied to stop the fastest photo-electrons is $[h = 4.14 \times {10^{ - 15}}\;eV\sec ]$

Dual Nature of Radiation and Matter

Question: The work function of a metallic surface is 5.01 eV. The photo-electrons are emitted when light of wavelength 2000Å falls on it. The potential difference applied to stop the fastest photo-electrons is $[h = 4.14 \times {10^{ - 15}}\;eV\sec ]$


1) 1.2 volts
2) 2.24 volts
3) 3.6 volts
4) 4.8 volts
Solution: Explanation: No Explanation
Photon and Photoelectric Effect

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