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A rod of uniform cross sectional area 5m...

A rod of uniform cross sectional area `5mm^2` weighing` 5 kg` and length `1 m` is suspended vertically from a fixed support the elongation produced in the rod if [Young's modulus of material, `Y=2 x 10^11 N/m^2` and `g=10 ms^(-2)`]

A

`0.05 mm`

B

`0.025 mm`

C

`0.005 mm`

D

`0.5 mm`

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