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Units and Dimensions

0 students
Last updated Aug 2026

Course Overview

About This Course

Welcome to IIT JEE Physics: Units and Dimensions, a comprehensive course designed to help you master one of the most fundamental topics in the IIT JEE Physics syllabus. This course is ideal for students preparing for IIT JEE Main, IIT JEE Advanced, and other engineering entrance examinations, as well as those looking to strengthen their Class 11 Physics fundamentals.


The course starts with the basics of units and dimensions and gradually progresses to advanced concepts such as dimensional analysis, dimensions of physical constants, dimensional correctness of equations, conversion between different systems of units, significant figures, and the application of dimensional analysis as a powerful problem-solving and research tool. Each topic is explained in a simple, logical, and step-by-step manner, followed by solved examples and IIT JEE-level practice questions to build conceptual clarity and problem-solving skills.


By the end of this course, you will have a strong understanding of Units and Dimensions and the confidence to solve challenging numerical and conceptual questions in competitive examinations.

Learning Outcomes

Understand the concepts of units, dimensions, and dimensional analysis.

Solve IIT JEE Main and Advanced level questions on Units and Dimensions.

Apply dimensional analysis to verify equations and derive physical relationships.

Convert physical quantities accurately between different systems of units.

Strengthen your Physics fundamentals for IIT JEE and other engineering entrance examinations.

Curriculum

6hr 13min 10 Sections • 61 Lectures
Introduction to Physics
5:21
Units and Dimensions: Definition
8:52
Types of Physical Quantities
10:06
System of Units: Various systems
10:07
System of Units: Plane Angle
4:38
System of Units: Solid Angle
9:26
Dimensions: Introduction
9:34
Dimensional Formulae: Part 1
5:31
Dimensional Formulae: Part 2
5:06
Dimensional Formulae: Part 3
6:28
Dimensional Formulae: Part 4
2:25
Dimensional Formulae: Part 5
9:00
Dimensionless Quantities: Part 1
4:43
Dimensionless Quantities: Part 2
6:23
Dimensional Analysis: Introduction
4:42
Principle of Dimensional Homogeneity
10:54
Finding Dimensions of Quantities in equations Part 1
6:42
Finding Dimensions of Quantities in equations Part 2
8:37
Finding Dimensions of Quantities in equations Part 3
4:03
Finding Dimensions of Quantities in equations Part 4
5:42
Finding Dimensions of Quantities in equations Part 5
4:38
Finding Dimensions of Quantities in equations Part 6
5:40
Finding Dimensions of Quantities in equations Part 7
3:22
Finding Dimensions of Quantities in equations Part 8
4:39
Dimensions of Physical Constants: Question 1
4:07
Dimensions of Physical Constants: Question 2
5:56
Dimensions of Physical Constants: Question 3
3:44
Dimensions of Physical Constants: Question 4
2:17
Dimensions of Physical Constants: Question 5
3:41
Dimensions of Physical Constants: Question 6
3:38
Dimensions of Physical Constants: Question 7
1:39
Checking Dimensional Correctness of Equation: Rule 1
6:24
Checking Dimensional Correctness of Equation: Rule 2
8:04
Checking Dimensional Correctness of Equation: Question 1
2:55
Checking Dimensional Correctness of Equation: Question 2
4:08
Converting a Physical Quantity across System of Units: Category 1 Introduction
4:58
Converting a Physical Quantity across System of Units: Category 1 Question 1
4:12
Converting a Physical Quantity across System of Units: Category 1 Question 2
1:12
Converting a Physical Quantity across System of Units: Category 1 Question 3
5:00
Converting a Physical Quantity across System of Units: Category 1 Question 4
9:36
Converting a Physical Quantity across System of Units: Category 1 Question 5
4:59
Converting a Physical Quantity across System of Units: Category 2 Question 1
7:18
Converting a Physical Quantity across System of Units: Category 2 Question 2
9:25
Converting a Physical Quantity across System of Units: Category 2 Question 3
7:49
Research tool to find new Relations: Question 1
8:07
Research tool to find new Relations: Question 2
3:30
Research tool to find new Relations: Question 3
2:30
Research tool to find new Relations: Question 4
4:56
Research tool to find new Relations: Limitation Part 1
6:12
Research tool to find new Relations: Limitation Part 2
9:32
Quick Revision
8:25
Miscellaneous Question 1
4:02
Miscellaneous Question 2
5:17
Miscellaneous Question 3
7:04
Miscellaneous Question 4
5:06
Miscellaneous Question 5
6:19
Significant Figures: Introduction
11:59
Rules for Counting Significant Figures Part 1
3:52
Rules for Counting Significant Figures Part 2
7:41
Rules for Counting Significant Figures Part 3
11:30
Rounding off of Significant Figures
8:30
Meet your instructors

Learn from Experts and Leaders

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An experienced and passionate instructor, [Name] is dedicated to fostering a dynamic and engaging learning environment where students feel motivated to grow both academically and personally. With a strong foundation in their subject area, they bring clarity, structure, and enthusiasm to every lesson, ensuring complex concepts are made accessible and relevant. Their teaching approach blends theoretical knowledge with practical application, encouraging students to think critically and develop problem-solving skills. Known for their supportive and approachable demeanor, [Name] builds meaningful connections with students, understanding that each learner has unique strengths and challenges. They are committed to creating an inclusive classroom atmosphere where curiosity is encouraged, questions are welcomed, and every student feels valued. By adapting teaching methods to suit diverse learning styles, they help students gain confidence and achieve their full potential. Beyond the classroom, [Name] is deeply invested in continuous learning and professional development, staying updated with the latest educational practices and advancements in their field. They often contribute to curriculum development, mentorship programs, and extracurricular activities, reinforcing their role as not just an instructor, but a mentor and guide. Their ultimate goal is to inspire lifelong learning and empower students to succeed in an ever-evolving world.

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Mr. Sahil Gupta

Mr. Sahil Gupta

Physics Educator | Engineering Entrance Exam Mentor | Problem-Solving Expert

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Mr. Sahil Gupta is a dedicated Physics educator and competitive exam mentor with a deep passion for teaching and conceptual learning. He specializes in preparing students for IIT-JEE and other engineering entrance examinations, helping them build a strong foundation in Physics through logical reasoning and analytical problem-solving. With expertise in Units & Dimensions and other fundamental Physics topics, he simplifies complex concepts using clear explanations, real-world examples, and exam-oriented techniques. His engaging teaching style encourages students to develop conceptual clarity, improve numerical problem-solving skills, and approach challenging questions with confidence. Committed to academic excellence, Mr. Gupta focuses on strengthening the fundamentals that form the backbone of advanced Physics, enabling learners to perform exceptionally well in competitive examinations. His mission is to inspire students to think scientifically, master core concepts, and achieve success in IIT-JEE and other prestigious engineering entrance exams.

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