Question

< Question 10 of 18 > Attempt 1 - Assuming that the smallest measurable wavelength in an experiment is 0.710 fm , what is the maximum mass of an object traveling at 409 m.s-1 for which the de Broglie wavelength is observable? m= 3.82 x10-16

Assuming that the smallest measurable wavelength in an experiment is 0.710 fm, what is the maximum mass of an object traveling at 409 m⋅s−1 for which the de Broglie wavelength is observable?

Answer 1

$\lambda$    = 0.710fm

        = 0.710*10^-15m

v = 409m/s

h   = 6.625*10^-34J-s

$\lambda$   = h/mv

m   = h/$\lambda$v

     = 6.625*10^-34/(0.710*10^-15*409)

     = 2.28*10^-21Kg >>>>answer