A ratio nuclide with half life `T=69.31` second emits `beta-` particles of average kinetic energy `E=11.25 eV`. At an instant concentration of `beta-`

Monjur Alahi

A ratio nuclide with half life `T=69.31` second emits `beta-` particles of average kinetic energy `E=11.25 eV`. At an instant concentration of `beta-` particles at distance, `r=2 m` from nuclide is `n=3xx10^(13) per m^(3)`.
(i) Calculate number of nuclei in the nuclide at that instant.
(ii) If a small circular plate is placed at distance `r` from nuclide such that `beta-`particles strike the plate normally and come to rest, calculate pressure experienced by the due to collision of `beta-` particles.
`("Mass of "beta-"particle"=9xx10^(-31) kg)`


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Salim Ahmed Kawsar

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