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what is the maximum wavelength (in nm) of light required to produce any current via...

what is the maximum wavelength (in nm) of light required to produce any current via the photoelectric effect if the anode is made of copper, which has a work function of 4.7eV?
In Nigerian Defence Academy
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Asked by Diego on 27th July, 2021
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WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts