Question: A yellow 589-nm light is incident on a surface whose work function is 1.20eV. Determine: 1. The light energy 2. Electron kinetic energy 3. stopping

A yellow 589-nm light is incident on a surface whose work function is 1.20eV. Determine: 1. The light energy 2. Electron kinetic energy 3. stopping potential 4. cut-off wavelength

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