Answer to Question #117358 in Atomic and Nuclear Physics for Paige

Question #117358
What velocity would a 60 kg person need to move at in order to have the same momentum as a 600 nm photon?
1
Expert's answer
2020-05-21T13:37:07-0400

Given data

Mass of person is m=60kgm=60 kg

Wavelength of photon is λ=600nm=600109m\lambda=600 nm =600*10^{-9} m

According to de Broglie hypothesis, the wavelength of matter wave is

λ=hmv\lambda=\frac{h}{mv}

The velocity of the person is

v=hmλv=\frac{h}{m\lambda}

=6.6261034(60)(600109)=1.841029m/s=\frac{6.626*10^{-34}}{(60)(600*10^{-9})}=1.84*10^{-29} m/s

Hence, the velocity of the person is v=1.841029m/sv=1.84*10^{-29} m/s


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