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An iron rod of length 2 m and cross-sect...

An iron rod of length 2 m and cross-sectional area of `50 mm^(2)` is stretched by 0.5 mm, when a mass of 250 Kg is hung from its lower end. Young's modulus of iron rod is

A

`19.6 times 10^20 Nm^-2`

B

`19.6 times 10^18 Nm^-2`

C

`19.6 times 10^10 Nm^-2`

D

`19.6 times 10^15 Nm^-2`

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SL ARORA-Mechanical Properties of Solids-Example
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