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Two spreings A and B(kA=2kB) ar stretche...

Two spreings A and B`(k_A=2k_B)` ar stretched by applying forces of equa magnitudes at the foru ends. If the energy stored in A is E, that in B is

A

2E

B

`E/4`

C

`E/2`

D

`4E`

Text Solution

Verified by Experts

The correct Answer is:
A
`E=(kx^2)/2 =(k^2x^2)/(2k) rArr E=f^2/(2k)`
`because` Force is equal `therefore E prop 1/k`
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