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Q. No.The increase in the length of a wire on stretching is \(0.04\)%. If Poisson's ratio for the material of wire is \(0.5,\) then the diameter of the wire will:
| 1. | decrease by \(0.02\)%. | 2. | decrease by \(0.01\)%. |
| 3. | decrease by \(0.04\)%. | 4. | increase by \(0.03\)%. |
Subtopic: Â Poisson's Ratio |
 74%
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The Poisson's ratio of a material is \(0.4.\) If a force is applied to a wire of this material, there is a decrease in the cross-section area by \(2\)%. In such a case the percentage increase in its length will be:
| 1. | \(3\)% | 2. | \(2.5\)% |
| 3. | \(1\)% | 4. | \(0.5\)% |
Subtopic: Â Poisson's Ratio |
 63%
From NCERT
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