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An iron wire an copper wire having same...

An iron wire an copper wire having same length and cross-section are suspended form same roof Young's modulus of copper is `1//3rd` that of iron. Then the ratio of the weighs to be added at their ends so that their ends are at the same level is

A

`1:3`

B

`1:9`

C

`3:1`

D

`9:1`

Text Solution

Verified by Experts

The correct Answer is:
C
`F = (Yae)/(l), F alpha Y`
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