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A nucleus at rest undergoes alpha-deacy ...

A nucleus at rest undergoes `alpha-`deacy emitting an `alpha` -particle of de Brogile wavelength `lambda=5.76 xx 10^(-15) m`. If the mass of the daughter nucleus is `223.610` amu and that of the `alpha`-particles is `4.002 amu`, determine the total kinetic erergy in the final state. Hence, obtian the mass of parent nucleus in amu `(1 amu =931.470 MeV `c^(-2))`.

A

`1.15xx10^(-19)kg-ms^(-1)`

B

`1.15xx10^(-20)kg-ms^(-1)`

C

`11.5xx10^(-25)kg-ms^(-1)`

D

`3.30xx10^(-19)kg-m-s^(-1)`

Text Solution

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The correct Answer is:
A
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