JEE Main 2012 — Mechanical Properties of Solids Question with Solution
JEE Main 2012 (07 May Online)
Question
A structural steel rod has a radius of and length of . A force stretches it along its length. Young's modulus of structural steel is . The percentage strain is about
Choose an option
Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
Given:
radius
From formula,
Therefore strain
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This is a previous-year question from JEE Main 2012, 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.