JEE Main 2019PhysicsMathematics in PhysicsEasyMCQ

JEE Main 2019 — Mathematics in Physics Question with Solution

JEE Main 2019 (10 Jan Shift 2)

Question

The diameter and height of a cylinder are measured by a meter scale to be 12.6±0.1 cm and 34.2±0.1 cm , respectively. What will be the value of its volume in appropriate significant figures?

Choose an option

Show full solutionCorrect option: C
Correct answer
C4260±80 cm3

Step-by-step explanation

V=πd2h4=π412.6234.2 cm3

dVV=2ddd+dhh

Converting to errors

∆VV=2∆dd+∆hh

∆V4260=20.112.6+0.134.2

⇒∆V=80 cm3

V=4260±80 cm3

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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.