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Physics · JEE

Important Questions: Units and Measurements for JEE

15+ syllabus-aligned questions available

Quick answer

The most important Units and Measurements questions for JEE cover conceptual traps, standard results, and numerical patterns from Units of measurements, System of units, SI Units, fundamental and derived units, Least count, significant figures, Errors in measurements, Dimensions of Physics quantities, dimensional analysis and its applications. Goodmarks provides 15+ high-yield MCQs with full solutions.

Focus on what matters most. These important Units and Measurements questions cover high-weightage concepts from Units of measurements, System of units, SI Units, fundamental and derived units, Least count, significant figures, Errors in measurements, Dimensions of Physics quantities, dimensional analysis and its applications — the topics JEE repeats every year.

Subtopics in Units and Measurements

  • Units of measurements, System of units, SI Units, fundamental and derived units
  • Least count, significant figures, Errors in measurements
  • Dimensions of Physics quantities, dimensional analysis and its applications

Free sample questions

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Q1PhysicsUnit 1: Units and Measurements
The mass of a ball is 1.76kg.1.76 k g . The mass of 25 such balls is
Q2PhysicsUnit 1: Units and Measurements
How many seconds are there in a week?
Q3PhysicsUnit 1: Units and Measurements
If the units of length and force are increased four times, then unit of energy will
Q4PhysicsUnit 1: Units and Measurements
If the dimension of a physical quantity is given by [MaLbTc]\left[M^{a} L^{b} T^{c}\right] then the physical quantity will be
Q5PhysicsUnit 1: Units and Measurements
How is the unit bar related to the S.I. unit pascal?
Q6PhysicsUnit 1: Units and Measurements
Which of the following is different from the rest?
Q7PhysicsUnit 1: Units and Measurements
The correct way to represent an unit amount of force is :
Q8PhysicsUnit 1: Units and Measurements
The equation of a plane progressive wave is given by y=Asin⁡(ωt−kx)\boldsymbol{y}=\boldsymbol{A} \sin (\boldsymbol{\omega} \boldsymbol{t}-\boldsymbol{k} \boldsymbol{x}) The dimension of (ω/k)(\omega / k) is that of

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Frequently asked questions

What makes a Units and Measurements question "important" for JEE?

Important questions test core concepts that appear frequently across JEE Main and Advanced papers — definitions, standard formulas, and classic problem types.

Which subtopics in Units and Measurements are high-weightage?

Key areas include Units of measurements, System of units, SI Units, fundamental and derived units, Least count, significant figures, Errors in measurements, Dimensions of Physics quantities, dimensional analysis and its applications. Prioritise these before moving to edge cases.

How many important questions should I revise?

Revise 30–50 important MCQs per unit in the last month before JEE. Focus on questions you got wrong at least once.

Can I practise only important questions on Goodmarks?

Pro users can filter by unit and subtopic to target high-yield areas. Free users can attempt sample questions on this page.

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