A stream of electrons from a heated filament was passed between two charged plates kept at a potential difference V esu. If e and m are charge and mass of an electron, respectively, then the value of h/λ (where λ is wavelength associated with electron wave) is given by:
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Solution :
λ=hp
=h2mE−−−−√
=h2meV−−−−−√
hλ=2meV−−−−−√
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