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AIEEE 2004 Physics Solved Paper
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© examsnet.com
Question : 72
Total: 78
A nucleus disintegrated into two nuclear parts which have their velocities in the ratio of
2
:
1
. The ratio of their nuclear sizes will be
3
1
2
:
1
1
:
2
1
3
2
1
3
:
1
1
:
3
1
2
Validate
Solution:
From conservation of momentum
m
1
v
1
=
m
2
v
2
⇒
(
m
1
m
2
)
=
(
v
2
v
1
)
given
v
1
v
2
=
2
⇒
m
1
m
2
=
1
2
⇒
r
1
3
r
2
3
=
1
2
⇒
(
r
1
r
2
)
=
(
1
2
)
1
∕
3
© examsnet.com
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