Question #325792

What is the wavelength of EM radiation that ejects 2.00 -eV electrons from calcium metal, given that the binding energy is 2.71 eV? What type of EM radiation is this?

1
Expert's answer
2022-04-11T12:06:45-0400

E−E1=hcλ,E-E_1=\frac{hc}{\lambda},

λ=hcE−E1=280 A˚.\lambda=\frac{hc}{E-E_1}=280~Å.


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