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Activity of a radioactive substance is R...

Activity of a radioactive substance is `R_(t)` at time `t_(1)` and `R_(2)` at time `t_(2)(t_(2)gtt_(1))`. Then the ratio `(R_(2))/(R_(1))` is

A

`e^(lambda(t_(2)+t_(1)))`

B

`e^(lambda(t_(1)-t_(2)))`

C

`e^(-lambda(t_(1)+t_(2)))`

D

`(t_(2))/(t_(1))`

Text Solution

Verified by Experts

The correct Answer is:
B
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