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Grade 11Modern Physics

Electron has energy of 100eV. What will be it`s wavelength (in Å) ?

Profile image of Preeti
8 Years agoGrade 11
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1 Answer

Profile image of Norman Manchu
ApprovedApproved Tutor Answer8 Years ago
Energy=hc|(wavelength)=100eV=100x1•6x10^-19=(6•6x10^-34)(3x10^8)|(wavelength)Thus wavelength=120x10^-10m=120A°Done|

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