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When a long spring is stretched by 2cm, ...

When a long spring is stretched by 2cm, its potential energy is U. If the spring is stretched by 10cm, the potential energy stored in it will be

A

E

B

5E

C

25E

D

`(25)/(2)E`

Text Solution

Verified by Experts

The correct Answer is:
C
`E_(1) = (1)/(2) Kx_(1)^(2) and E_(2) = (1)/(2) Kx_(2)^(2) :. E_(2) = 25 E_(1)`
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