Скачать или смотреть JEE Mains 2025 Physics | Maximum Percentage Error in Density Measurement | Units & Measurements PYQ

Boost your JEE Mains 2026 & 2027 preparation with this solved question from JEE Mains 2025 (22nd Jan Shift 2) Physics paper!
In this video, we discuss an important problem from the Units, Dimensions, and Error Analysis chapter — calculating the maximum percentage error in density of a wire when errors are given in mass, radius, and length measurements.

🔍 Question Summary:
Given:

Mass of wire = (0.60 ± 0.003) g

Radius of wire = (0.50 ± 0.01) cm

Length of wire = (10.00 ± 0.05) cm
Find the maximum percentage error in the calculated density of the wire.

📘 Concepts Covered:

Formula for density: ρ = M / (πr²l)

Propagation of errors and relative errors

How power of a variable affects its percentage error

Simplified method for quick JEE calculation

💡 Key Learning Outcomes:

Learn how to apply error propagation rules in formulas

Understand how to find maximum percentage error efficiently

Strengthen your basics in Experimental Physics & Measurements

📚 Topics Included:

Units and Dimensions

Error Analysis

Measurement Accuracy

Experimental Physics PYQs

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