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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 weigth mg, fig. What is the net elonetion 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-MECHANICAL PROPERTIES OF SOLIDS-Assignment(Section-C)
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  12. The Young's modulus of the meterial of a wire is 2xx10^(10) N m^(-2) I...

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  14. A wire of natural length l, young's modulus Y and ares of cross-sectio...

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  15. When a force is applied on a wire of uniform cross-sectional area 3xx1...

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