Questions
A radioisotope has a half life of 75years. The fraction of the atoms of this element that would decay in 150 years will be
a
66.6%
b
85.5%
c
62.5%
d
75%
detailed solution
Correct option is D
n=tT=15075=2 NN0=(12)2=14 Fraction of atoms decayed=N0−NN0=34N0N0=75% .Talk to our academic expert!
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