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Questions  

If there is no change in the volume of wire on stretching, then Poisson's ratio for the material of wire is: 

a
-1
b
0
c
0.5
d
0.25

detailed solution

Correct option is C

∆vv=∆ll(1-2σ) when ∆vv= 0 1-2σ=0   σ=0.5

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