`._(19)K^(40)` consists of 0.012% potassium in nature. The human body contains 0.35% potassium
Channel: Doubtnut
Date: 29/03/2020

`._(19)K^(40)` consists of 0.012% potassium in nature. The human body contains 0.35% potassium by weight. Calculate the total radioactivity resulting from `._(19)K^(40)` decay in a 75 Kg human body. Half life of `._(19)K^(40)` is `1.3 xx 10^(9)` years