A) protons
B) electrons
C) neutrons
D) positrons
Correct Answer: C
Solution :
When uranium is bombarded by neutrons, each uranium nucleus is broken into two nearly equal fragments and along with it huge energy and two or three fresh neutrons are liberated. Under favourable conditions these neutrons fission other uranium nuclei in the same way. Thus, a chain of nuclear fission is established which continues till the whole of uranium is consumed.
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