JEE Main 2017PhysicsMathematics in PhysicsEasyMCQ

JEE Main 2017 — Mathematics in Physics Question with Solution

JEE Main 2017 (09 Apr Online)

Question

A physical quantity P is described by the relation P=a12 b2 c3d-4. If the relative errors in the measurement of a, b, c and d respectively, are 2%, 1%, 3% and 5%. Then the relative error in P will be:

Choose an option

Show full solutionCorrect option: D
Correct answer
D32%

Step-by-step explanation

P=a12 b2c3d-4

∆ppmax=12 ∆aa+2∆bb+3∆cc+4∆dd

100×∆PP=12 ∆aa+2∆bb+3∆cc+4∆dd×100

% error in P=12×2+2×1+3 ×3+4 ×5

=32%
 

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About this question

This is a previous-year question from JEE Main 2017, 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.