Nuclear Physics And Radioactivity Question 68
Question: A radioactive nucleus undergoes a-emission to form a stable element. What will be the recoil velocity of the daughter nucleus if V is the velocity of a-emission and A is the atomic mass of radioactive nucleus [DCE 2000; AIIMS 2004]
Options:
A) $ \frac{4V}{A-4} $
B) $ \frac{2V}{A-4} $
C) $ \frac{4V}{A+4} $
D) $ \frac{2V}{A+4} $
Show Answer
Answer:
Correct Answer: A
Solution:
According to conservation of momentum $ 4v=(A-4)v’ $
Þ $ v’=\frac{4v}{A-4} $ .
BETA
