JEE Main 2013 — Mechanical Properties of Solids Question with Solution
JEE Main 2013 (23 Apr Online)
Question
A copper wire of length and a steel wire of length having equal cross-sectional areas are joined end to end. The composite wire is stretched by a certain load which stretches the copper wire by . If the Young's modulii of copper and steel are respectively and , the total extension of the composite wire is :
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
Therefore, total extension of the composite
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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.