Question

Activity of a sample reduces from a to a/root(3). Find activity after 3 hours

Answer 1

In one hour the activity remains 1/√3 times

So in 3 hrs it'll be (1/√3)^3 times remaining

So activity A=( A0/√3)×(1/√3)^3

=A0/9

Answer 2

Answer:

Explanation:

here is the attachment