Question

Assertion:There occurs a chain reaction when uranium is bombarded with slow neutrons.
Reason:When uranium is bombarded with slow neutrons more neutrons are produced
A. If both assertion and reason are true and reason is the correct explanation of assertion .
B. If both assertion and reason are true but reason is not the correct explanation of assertion .
C. If assertion is true but reason is false .
D. If both assertion and reason are false

Answer 1

Correct Answer - a
When uranium is bombarded by slow neutrons the reaction is represented as `._92^235U + ._0^1n to ._56^144Ba + ._36^89Kr + 3_0^1n`+Energy
As more neutrons are produced , the reason is correct.
There are additional neutrons strike uranium nuclei to produce even more neutrons. Thus a chain reaction is established.