Modern Physics> Nuclear physics...

The activity of a sample of radioactive material is 'X' at time t and 'Y' at time 3t,If it's mean life is 'T' ,then.......

1) X = 3Y

2) X - Y = 2t

3) Y = X e^(-2t/T)

4) Y = X e^(-3t/T)

Pls explain......

vishwajit pureti , 14 Years ago

Grade 12

1 Answers

aman gupta

Last Activity: 14 Years ago

mean life = 1/λ=T

activity= λn

i) X= λNe^-λt

ii) Y=λNe^-λ3t

divide (i)and (ii)

ans 3

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Modern Physics> Nuclear physics...

The activity of a sample of radioactive material is 'X' at time t and 'Y' at time 3t,If it's mean life is 'T' ,then....... 1) X = 3Y 2) X - Y = 2t 3) Y = X e^(-2t/T) 4) Y = X e^(-3t/T) Pls explain......

vishwajit pureti , 14 Years ago

aman gupta

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