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If wavelength of neutron beam used in ne...

If wavelength of neutron beam used in neutron microscope is 800 pm, calculate the velocity associated with the neutron (Mass of neutron `1.675xx10^(-27)kg`)

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`lambda=h/(mv)orv=h/(mlambda)=(6.626xx10^(-34))/(1.675xx10^(-27)xx800xx10^(-12)m)=494ms^(-1)`
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