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NEET 2015 Physics and Chemistry Paper
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Question : 43
Total: 91
A nucleus of uranium decays at rest into nuclei of thorium and helium. Then
[NEET 2015]
The helium nucleus has more momentum than the thorium nucleus.
The helium nucleus has less kinetic energy than the thorium nucleus.
The helium nucleus has more kinetic energy than the thorium nucleus.
The helium nucleus has less momentum than the thorium nucleus.
Validate
Solution:
👈: Video Solution
In an explosion a body breaks up into two pieces of unequal masses both part will have numerically equal momentum and lighter part will have more velocity.
U
→
Th
+
He
KE
Th
=
‌
P
2
2
m
T
h
KE
He
=
‌
P
2
2
m
He
since
m
He
is less so
KE
He
will be more.
© examsnet.com
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