If 4 gm of a radioisotope has a half life period of 10 days, the half life of 2 gm of the same isotope will be ____________ days?
(A) 5
(B) 10
(C) 20
(D) 30
If 4 gm of a radioisotope has a half life period of 10 days, the half life of 2 gm of the same isotope will be ____________ days?
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