Published by:
CGP EDU Academic Team
Published on: August 22, 2026
PART -A (PHYSICS)
At a given instant, say 
, two radioactive substances 
and 
have equal activates. The ratio 
of their activities. The ratio 
of their activates after time 
itself decays with time 
as 
. If the half-life of 
is 
, the half-life of 
is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
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