JEE Main 2018PhysicsMathematics in PhysicsEasyMCQ

JEE Main 2018 — Mathematics in Physics Question with Solution

JEE Main 2018 (08 Apr)

Question

The density of a material, in the shape of a cube, is determined by measuring three sides of the cube and its mass. If the relative errors in measuring the mass and length are 1.5% and 1%, respectively, the maximum error in determining the density is:

Choose an option

Show full solutionCorrect option: D
Correct answer
D4.5 %

Step-by-step explanation

ρ=ML3⇒Δρρ=ΔMM+3ΔLL⇒Δρρ×100=1.5+3×1
% relative error,=4.5 %

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About this question

This is a previous-year question from JEE Main 2018, covering the Mathematics in Physics 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.