Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Two radioactive nuclides X and Y initially contain the same number of undecayed nuclei
PHYSICS · Single correct · CBSE · Physics · Nuclei · Nuclei
Problem
Two radioactive nuclides X and Y initially contain the same number of undecayed nuclei. The half-life of X is 1 day, whereas that of Y is 10 days. The ratio of their initial activities
A
X
/
A
Y
A_X/A_Y
A
X
/
A
Y
is ____. (a)
100
100
100
(b)
10
10
10
(c)
0.1
0.1
0.1
(d)
5
5
5
Related theory
Radioactivity
Radioactive decay and emissions
Nuclear physics
Atomic Structure
Radioactive decay
Nuclei
Browse the problem library