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There is a stream of neutrons with kinet...

There is a stream of neutrons with kinetic energy of 0.0327 eV. If half life of neutrons is 700s, what fraction of neutrons will decay before they travel a distance of 10m? Take mass of neutron =`1.675xx10^(-27)kg.`

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The correct Answer is:
`[4 xx 10^(-3)]`
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