Calculate the minimum and maximum kinetic energy in eV of photoelectrons produced in cesium by 400 nm light when the potential difference is 2 V is applied as accelerating voltage. The critical (maximum) wavelength for the photoelectric effect in cesium is 660 nm.

calculate maximum and minimum kinetic energy in eV of photoelectrons produced in cesium by 400nm light. the critical maximum wavelength for the photoelectric effect in cesium in 660nm,when the potential difference is 2v
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