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AIPMT 2003 Physics and Chemistry Paper
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© examsnet.com
Question : 6
Total: 100
When a long spring is stretched by
2
cm
, its potential energy is U. If the spring is stretched by
10
cm
, the potential energy stored in it will be :
U
∕
5
5
U
10
U
25
U
Validate
Solution:
U
=
1
2
K
(
2
)
2
;
U
′
=
1
2
K
(
10
)
2
=
25
U
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