The half life of a radioactive substance is 20 minutes. The approximate time interval (t_2-t_1) between the time t_2 when \frac{2}{3} of it had decayed and time t_1 when \frac{1}{3} of it had decayed is: [AIEEE 2011]

AIEEE 2011 Solved Paper

Section: Physics

Question : 61 of 91

Marks: +1, -0

The half life of a radioactive substance is 20 minutes. The approximate time interval (t2−t1) between the time t2 when ‌

of it had decayed and time t1 when ‌

of it had decayed is:

[AIEEE 2011]

Go to Question:

Prev Question

Next Question