Homework Answers
Half life = 1min
no of particles emitted in 1 min = 1000
which means initially there are 2000 particle ann in 1 min which is half life it decay 1000 particles and 1000 particles are remain
no of particles remain after 1min = 1000
for next 1 min
1 min is half life therefore for next 1 min it decay the half no of particles
no of particles emit in next 1 min = 500
Option 2 is correct
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