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The radioactivity of a sample is R(1) at...

The radioactivity of a sample is `R_(1)` at a time `T_(1)` and `R_(2)` at time `T_(2)`. If the half-life of the specimen is T, the number of atoms that have disintegrated in the time `(T_(2) -T_(1))` is proporational to

A

`((R_(1)-R_(2))T)/(0.693)`

B

`R_(1)T_(1)-R_(2)T_(2)`

C

`((R_(1)-R_(2)))/(T)`

D

`(R_(1)-R_(2))`

Text Solution

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The correct Answer is:
A
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