The count rate fromfrom 100 cm^3 of a radioactive liquid is c. Some of this liquid is now discarded . The count rate of the remaining liquid is found to be c/10 after three Half-lives. Find the volume of the remaining liquid , in cm^3 ?

The count rate fromfrom 100 cm^3 of a radioactive liquid is c. Some of

1.	The count rate fromfrom 100 cm^3 of a radioactive liquid is c. Some of this liquid is now discarded . The count rate of the remaining liquid is found to be c/10 after three Half-lives. Find the volume of the remaining liquid , in cm^3 ?
Answer» Solution :INITIAL count rate (CR) for 1 `cm^3` of LIQUID `=c/100` After 3 half - lives , CR for 1 `cm^3` of liquid `=1/(8)xxc/100` Let the volume of the remaining liquid `=V cm^3` CR of this liquid `=V xxc/(800)=c/10 " or " V = 80`

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The count rate fromfrom 100 cm^3 of a radioactive liquid is c. Some of this liquid is now discarded . The count rate of the remaining liquid is found to be c/10 after three Half-lives. Find the volume of the remaining liquid , in cm^3 ?

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