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A rigid bar of mass 15 kg is supported s...

A rigid bar of mass 15 kg is supported symmetrically by three wires each 2.0 m long. Those at each end are of copper and the middle one is of iron. Determine the ratios of their diameters if each is to have the same tension.

A

`Y_(copper)//Y_(iron)`

B

`sqrt((Y_(iron))/(Y_(copper))`

C

`(Y_(iron)^2)/(Y_(copper)^2`

D

`(Y_iron)/(Y_-copper)`

Text Solution

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