JEE Main 2019PhysicsMechanical Properties of SolidsEasyMCQ

JEE Main 2019 — Mechanical Properties of Solids Question with Solution

JEE Main 2019 (08 Apr Shift 1)

Question

A steel wire having a radius of 2.0 mm , carrying a load of 4 kg, is hanging from a ceiling. Given that g=3.1π m s-2, what will be the tensile stress that would be developed in the wire?

Choose an option

Show full solutionCorrect option: D
Correct answer
D3.1×106 N m-2

Step-by-step explanation

Stress =mgπr2=4×3.1×ππ×2×10-32
=3.1×106N/m2

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About this question

This is a previous-year question from JEE Main 2019, 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.