Two radioactive materials 
and 
have decays constants 
and 
, respectively. The half life of 
is 
. Initially they contain some number of nuclei. The time at which the ratio of the remaining nuclie of 
to that of 
will be 
is
(Let 
)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
For two radioactive elements 
and 
, decay constants, 
and 
Half-life of 
If 
be the initial number of nuclei at 
, in both 
and 
or 
and 
be the nuclei after time 
.
Then, 
and, 
Putting values of 
, we get
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Frank and Hertz experiment proves that
The minimum excitation energy of an electron revolving in the first orbit of hydrogen is
The threshold wavelength of a photosensitive material is equal to the frequency of line of hydroge…
In hydrogen atom, if an electron in the orbit with principal quantum number ' ' jumps to the first…
If ' ' is the magnetic moment of an electron revolving around hydrogen nucleus in an orbit of prin…
The total energy of an electron in an orbit of hydrogen atom is E. The potential energy of the elec…