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Byju's Answer
Standard XII
Physics
Rutherford's Set up and Predictions
If a radioact...
Question
If a radioactive sample emits n beta particles in t second and emits 0.75n beta particles in next t second. Find mea life of sample.
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Similar questions
Q.
A radioactive substance emits
100
beta particles in the first
2
seconds and
50
beta particles in the next
2
seconds. The mean life of the sample is.
Q.
There are n number of radioactive nuclei in a sample that undergoes beta decay. If from the sample, n' number of
β
-particles are emitted every 2 s, then half-life of nuclei is
Q.
A radioactive material decays by
β
−
p
a
r
t
i
c
l
e
emission. During the first
2
seconds of a measurement,
n
β
−
p
a
r
t
i
c
l
e
s
are emitted and in the next
2
seconds
0.75
n
β
−
p
a
r
t
i
c
l
e
s
are emitted. If the mean-life of this material in seconds is given by
69.5
×
10
−
n
. Then
n
will be given by
(
l
n
3
=
1.0986
and
l
n
2
=
0.6931
)
.
Q.
A radioactive material emits 20
β
particles per minute at 283K. If the temperature is raised to 293K, the number of β particles emitted by the sample per minute is
Q.
The average life of a
W
g
m
sample of
200
R
a
is
T
seconds and average energy of the
β
-particles emitted is
E
MeV. At what rate in watts does the sample emit energy?
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