JEE Main 2019PhysicsMathematics in PhysicsEasyMCQ

JEE Main 2019 — Mathematics in Physics Question with Solution

JEE Main 2019 (09 Apr Shift 1)

Question

In the density measurement of a cube, the mass and edge length are measured as 10.00±0.10 kg and 0.10±0.01 m, respectively. The error in the measurement of density is:

Choose an option

Show full solutionCorrect option: A
Correct answer
A0.31

Step-by-step explanation

Density ρ=massvolume
∆ρρ=∆mm+∆VV
=∆mm+3∆aa ∵V=a3
=0.110+30.010.1
=0.01+30.1
=0.31

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About this question

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