1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard XII
Physics
Law of Radioactivity
What is the m...
Question
What is the mass of one Curie of
U
234
A
3.7
×
10
10
g
m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
2.348
×
10
23
g
m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
1.44
×
10
−
11
g
m
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
6.25
×
10
−
34
g
m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is
C
1.44
×
10
−
11
g
m
1 curie =
3.71
×
10
10
disintegration/sec and mass of
6.02
×
10
23
atoms of
U
234
=
234
g
m
∴
Mass of
3.71
×
10
10
atoms
=
234
×
3.71
×
10
10
6.02
×
10
23
=
1.44
×
10
−
11
g
m
Suggest Corrections
12
Similar questions
Q.
What is the mass of one curie of
U
234
?
Q.
The mass of
U
234
, with half-life
2.5
×
10
5
, corresponding to its activity of
1
Curie will be
Q.
The curie was originally intended to be the activity of one gram of radium-226. The actual weight of radium which is equal to one curie is (in gm)
T
50
(Radius-226) = 1620 years
One curie =
3.7
×
10
10
disintegrations (of atoms) per second (dps)
One year =
3.154
×
10
7
seconds
Q.
Show that the mass of radium
(
88
R
a
226
)
with an activity of
1
curie is almost
1
gram
[
T
1
2
=
1600
years].
[
1
curie
=
3.7
×
10
10
disintegrations per second].
Q.
The activity of a radioactive nuclide (X
100
) is
6.023
curie. If its disintegration constant is
3.7
x
10
4
sec
−
1
, then the mass of X is
View More
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Related Videos
Law of Radioactivity
PHYSICS
Watch in App
Explore more
Law of Radioactivity
Standard XII Physics
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
AI Tutor
Textbooks
Question Papers
Install app