First slide
Photo electric effect
Question

Work function of a metal is 3.9 eV/atom. Maximum kinetic energy of photo electrons when the metal is bombarded with a radiation of wavelength 200 nm is

Moderate
Solution

 Energy of incident ray eV/atom =1240λ(nm)=1240200=6.2 eV/atom ; K.Emax=Eincident-W.F ; K.Emax=6.2-3.9 eV/atom ;  

Get Instant Solutions
When in doubt download our app. Now available Google Play Store- Doubts App
Download Now
Doubts App