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Nuclei
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First Order Radioactive Decay
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Given a radioactive sample having half -
Question
Given a radioactive sample having half - life of 4 days. Find the probability, a nucleus disintegrates after 2 half lives.
A
4
3
B
3
2
3
1
C
3
2
1
D
5
4
Medium
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Updated on : 2022-09-05
Solution
Verified by Toppr
Correct option is A)
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Assertion
If the half life of a radioactive substance is
4
0
d
a
y
s
then
2
5
% substance decay in
2
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d
a
y
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.
Reason
N
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(
2
1
)
n
where,
n
=
half life period
time elapsed
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