Solution to task 646 from Chertov's for extramural stud
Seller: Михаил_Перович
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Product description
- A counter of α-particles, installed near the radioactive isotope, at the first measurement recorded N1 = 1400 particles per minute, and after a time t = 4 hours - only N2 = 400. Determine the half-life T1 / 2 of the isotope.