JEE Main 2013 — Mechanical Properties of Solids Question with Solution
JEE Main 2013 (22 Apr Online)
Question
A uniform wire (Young's modulus ) is subjected to longitudinal tensile stress of . If the overall volume change in the wire is , the fractional decrease in the radius of the wire is close to:
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
Given,
From eqns (i) and (ii) putting the value of and and solving we get
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This is a previous-year question from JEE Main 2013, covering the Mechanical Properties of Solids chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.