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TGT PGT Physics [Free] Practice Test: Units & Measurements – 25 Most Important MCQs

Boost Your TGT PGT Physics Prep with this free practice test on Units & Measurements. 25 key MCQs for 2025 exams. Take the test now at Physics Scholar!

TGT PGT Physics Practice Test on Units and Measurements - Physics Scholar

Are you preparing for the TGT or PGT Physics exams in 2025? Mastering Units, Dimensions, and Measurements is crucial, as it forms the foundation of many physics concepts and frequently appears in competitive exams.

At Physics Scholar, we’ve designed this free practice test with 25 carefully curated MCQs to help you master this topic. This test covers essential concepts like SI units, dimensional analysis, significant figures, and error measurement—key areas that can make or break your exam performance.

The test is structured to simulate the exam environment, with one question per page to help you focus and manage your time effectively. After completing the test, you can download a detailed solutions PDF to review your answers and learn from your mistakes. Whether you’re aiming for a TGT post in Uttar Pradesh or a PGT position in any state, this test will boost your preparation. Start now and take a step closer to acing your 2025 exam!

Take the Free Practice Test Now

Ready to test your knowledge? This 25-MCQ test on Units, Dimensions, and Measurements is designed for TGT PGT Physics aspirants preparing for 2025 exams.

Welcome to your Free Practice Test On Units, Dimensions & Measurements

1. 
. 1 a.m.u. is equivalent to:

1 a.m.u. तुल्य है-

2. 
Tesla is a unit for measuring:

टेस्ला मात्रक है-

3. 
Parsec is a unit of: पारसेक मात्रक है-

4. 
Number of base SI units is:

मूल SI मात्रको क संख्या है-

5. 
The dimensions of universal gravitational constant are :

सार्वत्रिक गुरुत्वाकर्षण नियतांक की विमा है-

6. 
If C and R represent capacitance and resistance respectively, then the dimensions of RC are:

यदि C व R क्रमश: धारिता व प्रतिरोध हो तो RC की विमा होगी-

7. 
Dimensional formula for latent heat is:

गुप्त ऊष्मा का विमीय सूत्र है-

8. 
5. The equation $ \left(\mathrm{P}+\frac{\mathrm{a}}{\mathrm{V}^{2}}\right)(\mathrm{V}-\mathrm{b})= $ constant. The unit of a is:

समीकरण $ \left(\mathrm{P}+\frac{\mathrm{a}}{\mathrm{V}^{2}}\right)(\mathrm{V}-\mathrm{b})= $ नियतांक में a का मात्रक है-

9. 
The unit of Stefan's constant $ \sigma $ is:

स्टीफन नियतांक $ \sigma $ का मात्रक है-

10. 
The unit of permeability of vacuum $ \left(\mu_{0}\right) $ is:

निर्वात की चुम्बकशीलता $ \left(\mu_{0}\right) $ का मात्रक है-

11. 
Which unit is not for length:

निम्न में से कौन लम्बाई का मात्रक नहीं है-

12. 
The unit of energy in the CGS system is: CGS प्रणाली में ऊर्जा की इकाई क्या है?

  • (a) Joule / जूल
  • (b) Erg / एर्ग
  • (c) Calorie / कैलोरी
  • (d) Electron volt / इलेक्ट्रॉन वोल्ट

13. 
In which system, the fundamental quantities are mass, force, and time? किस प्रणाली में मौलिक राशियाँ द्रव्यमान, बल, और समय होती हैं?

  • (a) MKS system
  • (b) CGS system
  • (c) FPS system
  • (d) SI system

14. 
The unit of electric field intensity in the SI system is: SI प्रणाली में विद्युत क्षेत्र तीव्रता की इकाई क्या है?

15. 
If $ L $, $ C $, and $ R $ represent inductance, capacitance, and resistance respectively, then which of the following does not represent dimensions of frequency:

16. 
Which of the following has different dimensions than the others? निम्नलिखित में से किसकी आयाम अन्य से भिन्न हैं?

  • (a) Work / कार्य
  • (b) Energy / ऊर्जा
  • (c) Power / शक्ति
  • (d) Torque / आघूर्ण

17. 
The dimensional formula of angular momentum is: कोणीय संवेग का आयामी सूत्र क्या है?

18. 
If force $ F $, velocity $ v $, and time $ t $ are fundamental quantities, then the dimensional formula of mass $ m $ in terms of $ F, v, t $ is:

यदि बल $ F $, वेग $ v $, और समय $ t $ मौलिक राशियाँ हैं, तो द्रव्यमान $ m $ का आयामी सूत्र क्या होगा?

 (a) $ F v t^{-1} $
(b) $ F v^{-1} t^{-1} $
 (c) $ F v^{-1} t $
 (d) $ F v t $

19. 
Which of the following quantities is dimensionless? निम्नलिखित में से कौन सी राशि विमाहीन है?

20. 
The dimensional formula of Planck's constant $ h $ is: प्लैंक स्थिरांक $ h $ का आयामी सूत्र क्या है?

21. 
If $ \mathrm{v}=\frac{\mathrm{d}}{\mathrm{t}}, \mathrm{d}=10 \mathrm{~m} $, and $ \mathrm{t}=5 \mathrm{sec} $, then in determination of v , the maximum percentage error is (the least count in the measurement of $ d $ is 1 cm and in measurement of $ t $ is 1 second)

यदि $ \mathrm{v}=\frac{\mathrm{d}}{\mathrm{t}} $ तथा $ \mathrm{d}=10m $ व $ \mathrm{t}=5 \mathrm{sec} $, तो v के मापन में होने वाली अधिकतम प्रतिशत त्रुटी है $ (\mathrm{d} $ तथा t को मापने मे क्रमशः 1 सेमी तथा 1 सेकण्ड का अल्पतमांक है।)

22. 
Percentage error in measurement of volume of a cube is 9% percentage error in its surface area will be:

एक घन के आयतन मापने में 9%  की त्रुटी होती है तो घन की सतह का क्षेत्रफल मापने में प्रतिशत त्रुटी होगी-

23. 
Significant figures in 0.02800: / 0.02800 मे सार्थक अंको की संख्या है-

24. 
The distance transversed by an object is denoted by an equation $ x=a t+\frac{b t^{2}}{c+a} $, where $ t $ is time and $ a $, $ b, c $ are constant. Dimensional formula of $ b $ and $ c $ respectively will be:

एक वस्तु द्वारा तय की गयी दूरी समीकरण $ \mathrm{x}=\mathrm{at}+\frac{\mathrm{bt}^{2}}{\mathrm{c}+\mathrm{a}} $, द्वारा प्रदर्शित की जाती है, जहाँ समय t तथा $ \mathrm{a}, \mathrm{b}, \mathrm{c} $ नियतांक है, b तथा c की क्रमशः विमा होगी-

25. 
In the relation y = a cos(ωt - kx), the dimensional formula for k is: सूत्र y = a cos(ωt - kx) में k की विमा होगी—

Why Units & Measurements Matter for TGT PGT Physics

Units, Dimensions, and Measurements form the foundation of physics. This topic tests your understanding of SI units (e.g., the unit of force is Newton), dimensional analysis (used to check the consistency of equations), and error measurement (e.g., significant figures).

In TGT and PGT Physics exams, you’ll encounter questions like: “What is the dimensional formula of work?” or “Convert 1 km/h to m/s.” Mastering these concepts not only helps you solve direct questions but also builds a strong base for advanced topics like Mechanics and Thermodynamics.

Our 25-MCQ test includes a mix of easy, medium, and difficult questions to ensure comprehensive preparation. You’ll find questions on unit conversions, dimensional consistency, and more, all aligned with the 2025 TGT/PGT syllabus.

Why Choose Physics Scholar for TGT PGT Physics Prep?

At Physics Scholar, we’re committed to helping aspirants like you succeed in TGT and PGT Physics exams. Our free practice tests, detailed solutions, and study guides are designed by experts to ensure you’re well-prepared for 2025. Join thousands of students who trust Physics Scholar as their go-to resource for physics exam prep.

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@mitpatel
@mitpatel

Hello!  I am Amit Patel From Uttar Pradesh. I have done my  Masters in Physics (2018) & B.Ed. (Education), Now I am working with Physics Scholar (By Anup Sir) as a Technical Team Member & content writer specially on Educational Carrier Counselling for Teaching Exams. I am a lover of Physics so i also explore to write articles on Science & Technology.

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