Units and Dimensions: NEET Physics Questions and PYQs
Units and Dimensions is a chapter of NEET Physics, in the Mechanics I unit. YoExam has 560+ practice questions on it, including 60+ previous year questions from NEET and AIPMT papers from 1988 to 2025, and every question comes with the answer and a full explanation.
Topics covered in Units and Dimensions
Each topic can be practised on its own, so you can drill the exact part of the chapter you are weakest in.
- Physical Quantities & SI Units
- Dimensions & Dimensional Formulae
- Dimensional Analysis
- Significant Figures & Rounding
- Errors in Measurement
- Combination of Errors
- Accuracy, Precision & Least Count
- Order of Magnitude
Question types
Pick one type to focus, or mix them all. Counts as of 24 September 2026.
| Question type | Questions |
|---|---|
| Topic Wise | 400 |
| Previous Year Questions | 62 |
| Numerical Questions | 50 |
| Theoretical Questions | 50 |
| Total | 562 |
Units and Dimensions previous year questions
60+ questions on Units and Dimensions come from past NEET and AIPMT papers from 1988 to 2025, across 33 different years. Each one shows the paper it came from, so you can see how the chapter has been examined over time. The NEET PYQ chapter-wise page compares every chapter.
How practice works
- Choose a question type or a topic, then answer at your own pace.
- Check each answer to see whether it is right, the correct option and the full explanation.
- Stop whenever you like and resume from the same question later.
- At the end, see your accuracy, time, and a breakdown by question type and difficulty.
Frequently asked questions
How many NEET questions are there on Units and Dimensions?
YoExam has 560+ practice questions on Units and Dimensions, including 60+ previous year questions from NEET and AIPMT papers from 1988 to 2025. Every question comes with the correct answer and a full explanation.
Are there NEET PYQs for Units and Dimensions?
Yes. 60+ questions on Units and Dimensions come from past NEET and AIPMT papers from 1988 to 2025, across 33 different years. You can practise them on their own by choosing Previous Year Questions for this chapter.
Is Units and Dimensions free to practise on YoExam?
Yes. Units and Dimensions is the first chapter of the Mechanics I unit, and the first chapter of every unit is free on YoExam, with no card needed.
What types of questions are there for Units and Dimensions?
You can practise Units and Dimensions as Topic Wise, Previous Year Questions, Numerical Questions and Theoretical Questions, or mix every type together in one session.
Which topics does Units and Dimensions cover?
8 topics: Physical Quantities & SI Units; Dimensions & Dimensional Formulae; Dimensional Analysis; Significant Figures & Rounding; Errors in Measurement; Combination of Errors; Accuracy, Precision & Least Count; Order of Magnitude. Each one can be practised on its own.
More chapters in Mechanics I
- Vernier Caliper & Screw Gauge: 450+ questions, 8 PYQs
- Motion in a Straight Line: 480 questions, 60 PYQs
- Motion in a Plane: 490+ questions, 70+ PYQs
- Laws of Motion: 470+ questions, 50+ PYQs
- Friction: 280 questions, 20 PYQs
- Work, Energy and Power: 430+ questions, 90+ PYQs
- Centre of Mass: 290+ questions, 15 PYQs
- Rotational Motion: 540+ questions, 90+ PYQs
- Gravitation: 480+ questions, 80+ PYQs
See every chapter on the NEET Physics page.