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)

A ratio nuclide with half life T=69.31 second emits beta- particles of

1.	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)
Answer» ANSWER :`[(i) 9.6 PI xx10^(22), (II) 1.08xx10^(-4) Nm^(-2)]`

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