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JEE Main Units, Dimensions & Measurement Mock Test

~1 questions per paper · 3% Physics weightage

Easy6 subtopics

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Subtopics in Units, Dimensions & Measurement

SI Units
Dimensional Analysis
Significant Figures
Errors in Measurement
Vernier Caliper
Screw Gauge

Key Formulas

›Relative error = δa/a
›[Energy] = ML²T⁻²
›[Power] = ML²T⁻³
›[Pressure] = ML⁻¹T⁻²

Units, Dimensions & Measurement in JEE Main — Exam Statistics

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Units, Dimensions & Measurement in JEE Main — FAQ

Is Dimensional Analysis important for JEE Main?

Yes — 1 question on dimensional analysis appears in most JEE Main papers. Common questions ask for dimensions of physical constants (Planck's constant, gravitational constant) and deriving formulas using dimensional analysis.

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