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Half-life of a radioactive substance is ...

Half-life of a radioactive substance is 120 days. After 480 days, 4 g will be reduced to

A

2

B

1

C

0.5

D

0.25

Text Solution

Verified by Experts

The correct Answer is:
D
`n = (480)/(120) = 4 , N = (N_0)/(2^n) , N = 4/(2^4) = 4/(16) = 0.25 g`
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