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A wire having Young's modulus 1.2 xx 10^...

A wire having Young's modulus `1.2 xx 10^11 N/m^2` is subjected to the stress of `2.4 xx 10^7 N /m^2` . If the length of the wire is 10m, the extension produced in it

A

a)2 mm

B

b)3 mm

C

c)4 mm

D

d)1 mm

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The correct Answer is:
A
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