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Two wire A and B of length l, radius r a...

Two wire A and B of length l, radius r and length 2l, radius 2r having same Young's modulus Y are hung with a width mg, fig. What is the net elongation in the two wires?

A

`(3mgl)/(pir^2Y)`

B

`(2mgl)/(3pir^2Y)`

C

`(3mgl)/(2pir^2Y)`

D

`(3mgl)/(4pir^2Y)`

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AAKASH INSTITUTE ENGLISH-MECHANICAL PROPERTIES OF SOLIDS-Assignment(Section-C)
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