JEE Main 2026 — Mathematics in Physics Question with Solution
JEE Main 2026 (06 April Shift 1)
Question
The density of a uniform cylinder is determined by measuring its mass , length and diameter . The measured values of , and are g, mm and mm, respectively. Calculated percentage fractional error in is _______.
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
The density of a uniform cylinder is given by
The percentage fractional error in density is given by:
Substituting the given values:
Rounding off to two decimal places, the percentage error is .
Answer:
The percentage fractional error in density is given by:
Substituting the given values:
Rounding off to two decimal places, the percentage error is .
Answer:
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This is a previous-year question from JEE Main 2026, 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.