A radioactive substance decays to one third of its original value in 6 hr time what is the half life of the substance ?
Answers
Answered by
0
Answer:
the action or process of moving or being moved.
"the laws of planetary motion"
Answered by
1
Answer:
activity of radioactive substance at any time t is given by
⇒N=N
0
e
−λt
given that
N
0
N
=
16
1
at time t=40days
⇒
16
1
=e
−40λ
⇒e
40λ
=16
⇒λ=
40
ln16
we know that
t
2
1
=
λ
ln2
after putting the value of λ in above equation
⇒t
2
1
=
ln16
ln2
×40=10
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