MCQOPTIONS
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MCQOPTIONS
| 1. |
A radioactive nucleus A with a half-life T, decays into a nucleus B. At \[t=0,\]there is no nucleus B. At some time t, the ratio of the number of B to that of A is 0.3. Then, t is given by |
| A. | \[t=T\log (1.3)\] |
| B. | \[t=\frac{T}{\log (1.3)}\] |
| C. | \[t=T\frac{\log 2}{\log 1.3}\] |
| D. | \[t=\frac{\log 1.3}{\log 2}T\] |
| Answer» E. | |