Modern Physics 3 Question 21

21. The decay constant of a radioactive sample is λ. The half-life and mean-life of the sample are respectively given by

(1989,2M)

(a) 1/λ and (ln2)/λ

(b) (ln2)/λ and 1/λ

(c) λ(ln2) and 1/λ

(d) λ/(ln2) and 1/λ

Show Answer

Solution:

  1. As we know, Ty2=ln2λ and τ=1λ.


NCERT Chapter Video Solution

Dual Pane