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The graph shows how the count-rate A of ...

The graph shows how the count-rate A of a radioactive source varies with time t. A and t are related as: (assume in (12)=2.5)

A

`A=2.5e^(-10t)`

B

`A=12e^(10t)`

C

`A=2.5e^(-(0.1t))`

D

`A=12 e^(-(0.1t))`

Text Solution

Verified by Experts

The correct Answer is:
D
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