The Poisson’s ratio of a material is 0.4. If a force is applied to a wire of this material, there is decrease of cross-sectional area by 2%. The percentage increase in its length is
a)
3%
b)
2.5%
c)
1%
d)
0.5%
The Poisson’s ratio of a material is 0.4. If a force is applied to a wire of this material, there is decrease of cross-sectional area by 2%. The percentage increase in its length is
a)
3%
b)
2.5%
c)
1%
d)
0.5%
Question ID - 56001 | SaraNextGen Top Answer
The Poisson’s ratio of a material is 0.4. If a force is applied to a wire of this material, there is decrease of cross-sectional area by 2%. The percentage increase in its length is
a)
3%
b)
2.5%
c)
1%
d)
0.5%
|
The Poisson’s ratio of a material is 0.4. If a force is applied to a wire of this material, there is decrease of cross-sectional area by 2%. The percentage increase in its length is |
|||||||
|
a) |
3% |
b) |
2.5% |
c) |
1% |
d) |
0.5% |
1 Answer
127 votes
Answer Key / Explanation : (b) -
(b)
Poisson’s ratio, 
Area 
Differentiating
As 
= 2
Given 
= 2=2 
Given 
0.4
Or 
= 2.5 
= 2.5%
127 votes
Answer Link
127