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If 75% quantity of a radioactive isotope...

If 75% quantity of a radioactive isotope disintegrates in 2 hour , its half-life would be :

A

1 hour

B

45 minutes

C

30 minutes

D

15 minutes

Text Solution

Verified by Experts

The correct Answer is:
A
`100% overset(1hr) (to) 50% overset(1 hr) 25% , t = 2` hrs
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