Mechanical Properties of Solids - Result Question 4
5. Copper of fixed volume ’ ; is drawn into wire of length ’ ‘. When this wire is subjected to a constant force ’ ‘, the extension produced in the wi re is ’ ‘. Which of the following graphs is a straight line?
[2014]
(a)
(b)
(c)
(d)
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Solution:
- (b) As
But
Therefore
Hence graph of