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The equivalent wavelength of a moving electron has the same value as that of a photon having an energy of 6 xx 10^(-17) J. Calculate the momentum of the electron. |
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Answer» Solution :E = Energy of the photon `=hv=(hc)/(lambda)` `:. lambda=(hc)/(E)` `:.` Wavelength of the MOVING electron `=lambda=(hc)/(E)` `:.` Momentum of the electron =p `=(h)/(lambda)=(hE)/(hc)=(E)/(C)` `=(6xx10^(-17))/(3xx10^(8))kg ms^(-1)` `=2xx10^(-25)kg ms^(-1)` |
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