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NEET Physics Units and Measurements Quiz

Test your revision with an interactive quiz on dimensions, SI units, significant figures, least count, measurement errors and unit conversion.

OverviewQuick revisionQuizHow to reviewFAQs

Test Your Units and Measurements Preparation

This short quiz checks whether you can apply core Units and Measurements rules under exam-like conditions. Attempt all questions without checking notes, then use the feedback to identify the specific concept to revise.

8 original MCQsSuggested time: 10 minutesInstant answer feedbackFree practice
Original practice: These questions are created for NEET-style chapter revision. They are not presented as exact official NEET previous-year questions.

Quick Revision Checklist

Take one minute to recall these rules before starting.

Dimensions

Force: \([M L T^{-2}]\); pressure: \([M L^{-1} T^{-2}]\); energy: \([M L^2 T^{-2}]\).

Errors

For products and quotients, maximum percentage errors add. Multiply an error by the exponent when a quantity is raised to a power.

Significant figures

Leading zeros are not significant. A trailing zero after a decimal point is significant.

Conversions

Apply the power during area and volume conversion: square for area and cube for volume.

Units and Measurements Quiz Questions

Select one option for every question, then use Check My Answers to see your score and explanations.

Question 1 · Dimensions

The dimensional formula of pressure is:

Question 2 · Significant Figures

How many significant figures are present in 0.004050?

Question 3 · Error Analysis

If \(Q=A\times B\), and percentage errors in \(A\) and \(B\) are 2% and 3%, the maximum percentage error in \(Q\) is:

Question 4 · Dimensional Consistency

Which relation is dimensionally correct for initial velocity \(u\), acceleration \(a\) and time \(t\)?

Question 5 · Unit Conversion

If 1 newton equals \(10^5\) dyne, then 1 joule is equal to:

Question 6 · Percentage Error

A length is measured as \((5.0\pm0.1)\) cm. Its percentage error is:

Question 7 · Error in Power

The radius of a sphere has a 2% error. The maximum percentage error in its volume is:

Question 8 · Addition Rule

When 12.11 and 18.0 are added, the correctly reported result is:

Your Quiz Result

0 / 8

See What to Revise Next

How to Review Your Score

Your result is useful only when you identify the exact rule behind each wrong answer.

  • 0–3 correct: Read the quick revision cards again and solve a smaller set topic by topic.
  • 4–6 correct: Focus on the questions you missed. Write the dimension or error rule once without looking.
  • 7–8 correct: Your basics are strong; move to mixed Physics practice so these rules become automatic in longer calculations.
Error-log prompt: Write: “I missed this because…” and complete it with one of four labels—formula, concept, conversion, or significant-figure rule. This creates an actionable next revision task.

Continue NEET Physics Practice

Use chapter-wise questions after this quiz, then move to mixed Physics practice. Review every guessed question too, even if it happened to be correct.

Practise PYQ-Style Questions

NEET Units and Measurements Quiz FAQs

Is this Units and Measurements quiz free?

Yes. This is a free NEET Physics chapter quiz with original MCQs, instant score calculation and answer explanations.

Which topics does the quiz cover?

It covers SI units, dimensional formulae, dimensional consistency, significant figures, least count, unit conversion and errors in measurement.

Are these official NEET previous-year questions?

No. These are original questions created for NEET-style revision. Use official sources separately for exact previous-year papers.

What should I do after completing the quiz?

Review each explanation, record the rule behind your mistakes and reattempt the quiz after a short revision. Then try PYQ-style or chapter-wise practice questions.