4g of a radioactive material of half life 10days is spilled on a laboratory floor...
4g of a radioactive material of half life 10days is spilled on a laboratory floor...
4g of a radioactive material of half life 10days is spilled on a laboratory floor . How long would it take to disintegrate 3.5g of the material?
(a) 1¼days (b) 8¾days (c) 30days (d) 80 days?
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