Radioactive nuclei has10 ^8,its half life is 30s the number of nuclei left after 15s is
Suraj Mishra , 8 Years ago
Grade 11
Modern Physics> Radioactive nuclei has10 ^8,its half life...
1 AnswersVikas TU
Last Activity: 7 Years ago
Dear Student,
0.693/t1/2 =
t1/2= half life
=disintegration or rot consistent
=>0.693/30 =
=>=0.0231
=2.303log(a/a-x)/t
a=initial sum
a-x= sum left after deterioration
t=time of rot
=>0.0231=2.303log(108/108-x)/15
=>108/108-x=1.41
=>Amount left=108-x=7,09,21,986 nuclei.
Cheers!!
Regards,
Vikas (B. Tech. 4th year
Thapar University)
Thapar University)
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