the activity of radioactive substance is 4700 per minute .Five minute later the activity is 2700 per minute. Find
a) decay constant and
b) half-life of the radioactine substance.

Question

the activity of radioactive substance is 4700 per minute Five
minute later the activity is 2700 per minute Find
a) decay constant and
b) half-life of the radioactine substance

Pintu B. · Accepted Answer

Dear Student ,
Here in this problem , from the given data we can write that ,
Using R=R0e-λt ⇒2700=4750 e-5t ⇒λ=0
113 minUsing T1/2=0
693λ=0·693/0·113 =6·132 min

Regards

the activity of radioactive substance is 4700 per minute .Five minute later the activity is 2700 per minute. Find a) decay constant and b) half-life of the radioactine substance.

the activity of radioactive substance is 4700 per minute .Five minute later the activity is 2700 per minute. Find
a) decay constant and
b) half-life of the radioactine substance.