Published by:
CGP EDU Academic Team
Published on: August 23, 2026
PART-I PHYSICS
SECTION - A
Substance 
has atomic mass number 16 and half-life of 1 day. Another substance 
has atomic mass number 32 and half life of 
day. If both 
and 
simultaneously start undergo radio activity at the same time with initial mass 
each, how many total atoms of A and B combined would be left after 2 days.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
moles
moles
Total 
moles
No. of atoms 
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