Units and Measurements for NEET: PYQ trend, NCERT lines NEET repeats, free lecture

Units and Measurements in NEET: the numbers

51NEET / AIPMT questions in our PYQ bank (1988–2026)

30exam years with a question from this chapter

5NCERT lines NEET asked more than once

Topics NEET asks most

Topic	Questions
Dimensions and dimensional analysis	30
Errors in measurement	13
SI units and unit systems	5
Significant figures	3

NCERT lines NEET asked again and again

Read these lines from your NCERT book twice: NEET has built questions on each of them more than once.

For products, quotients and powers, percentage errors add , each multiplied by its power . A r³ quantity carries three times the % error of r.

AIPMT 1995AIPMT 2008NEET 2022NEET 2025

Pressure, stress, Young's modulus and energy per unit volume all share [ML⁻¹T⁻²] , so (1/2)ε₀E² is a pressure-type quantity.

AIPMT 2010NEET 2020NEET 2022

Angle, solid angle, strain, refractive index and dielectric constant are dimensionless ; but G and h are dimensional constants .

AIPMT 1995AIPMT 2008NEET 2024

Every term of a correct equation has the same dimensions , and the argument of sin, e^x or log must be dimensionless . This fixes units of constants.

AIPMT 1993AIPMT 2006AIPMT 2012

In multiplication or division keep the fewest significant figures of the inputs; in addition or subtraction keep the fewest decimal places .

NEET 2020NEET 2022NEET 2026

Free lecture by Prashant Sir

CURRENT ELECTRICITY L-1 | NEET Physics Crash Course | NCERT Physics Class 12 · 2.3M views on YouTube

Free NCERT notes for Units and Measurements

How we measure, which units we use, how dimensions check an equation, and how errors and significant figures tell you how much to trust a number. It is a short chapter, but NEET almost always asks something from it, most often dimensions or error propagation.

Read the chapter notes: key NCERT points, graphs, every formula with its meaning, tricks, common mistakes and NEET traps.

FAQ

How many questions come from Units and Measurements in NEET?

Our bank of NEET and AIPMT papers (1988–2026) has 51 questions from Units and Measurements, most of them from Dimensions and dimensional analysis, Errors in measurement, SI units and unit systems.

Which NCERT line of Units and Measurements has NEET asked the most?

This line has been asked 4 times in NEET/AIPMT: "For products, quotients and powers, percentage errors add, each multiplied by its power. A r³ quantity carries three times the % error of r."

Where can I study Units and Measurements for NEET for free?

Prashant Sir's full lecture is free on the NEET Physics Kota YouTube channel, and the chapter notes are free on Dhruv.