T_(1//2) for a radioactive nuclei is 12.5 hr. and its mass is 256 gm. The time after which an amount of the remaining substance is 1 gm is ___ hr.

T_(1//2) for a radioactive nuclei is 12.5 hr. and its mass is 256 gm.

1.	T_(1//2) for a radioactive nuclei is 12.5 hr. and its mass is 256 gm. The time after which an amount of the remaining substance is 1 gm is ___ hr.
Answer» 75 100 125 150 Answer :B

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T_(1//2) for a radioactive nuclei is 12.5 hr. and its mass is 256 gm. The time after which an amount of the remaining substance is 1 gm is ___ hr.

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