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Two steel wrres having same length are s...

Two steel wrres having same length are suspended from a celiling under the same load. If the ratio of their energy stored per unit volume is `1:4` the ratio of their diameters is :

A

`sqrt(2):1`

B

`1:sqrt(2)`

C

`1:2`

D

`2:1`

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The correct Answer is:
A
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