Log ind
JAMB - Physics (2009 - No. 31)
If the decay constant of a radioactive substance is 0.231s-\(^1\), the half-life is?
3.00 s
0.12 s
0.33 s
1.50 s
Forklaring
Half-life, T (1)/2 = (0.693)/∆ = (0.693)/ 0.231 = 3.0sec
Kommentarer (0)
Log ind for at kommentere
Reklame
Tillad, at javascript indlæser denne side korrekt
