Solve this:

Q.  Derive an expression for the de-Broglie wavelength associated with an electron accelerated through a potential V. Draw a schematic diagram of a localised wave describing the wave nature of the moving electron. Foreign 2009

Dear Student,
                      We have λ=hp----1and p=2mE=2meV---2    (here E=eV  , V potential difference)put it in 1 we getλ=h2meV     
              
Regards

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