Modern Physics> Radioactive nuclei has10 ^8 nuclei, it`s ...

Radioactive nuclei has10 ^8 nuclei, it`s half life is 30s the number of nuclei left after 15s is

Suraj Mishra , 8 Years ago

Grade 11

1 Answers

Vikas TU

Dear Student,

0.693/t1/2 = k

t1/2= half life

k=disintegration or rot consistent

=>0.693/30 = k

=>k=0.0231

k=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. 4^th year
Thapar University)

Last Activity: 8 Years ago

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Modern Physics> Radioactive nuclei has10 ^8 nuclei, it`s ...

Radioactive nuclei has10 ^8 nuclei, it`s half life is 30s the number of nuclei left after 15s is

Suraj Mishra , 8 Years ago

Vikas TU

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