Nuclear Chemistry Question 21

Question: A radioactive substance has a constant activity of 2000 disintegration/minute. The material is separated into two fractions, one of which has an initial activity of 1000 disintegrations per second while the other fraction decays with $ {t _{1/2}} $ = 24 hours. The total activity in both samples after 48 hours of separation is

[JIPMER 2000]

Options:

A) 2000

B) 1250

C) 1000

D) 1500

Show Answer

Answer:

Correct Answer: A

Solution:

The problem refers that rate is constant.