Question

31. There are two radioactive substance A and B. Decay
constant of B is two times that of A, initially both
have equal number of nuclei. After n half lives of A,
rate of disintegration of both are equal. The value of
n is
3.3
(1) 5
(2) 2
(3) 4
(4) 1
​

Answer 1

Explanation:

31. There are two radioactive substance A and B. Decay

constant of B is two times that of A, initially both

have equal number of nuclei. After n half lives of A,

rate of disintegration of both are equal. The value of

n is

3.3

(1) 5

(2) 2

(3) 4

(4) 1

Answer 2

Answer:

the value of n is 1 that is fourth option