1. Units & Dimensions

   • Need for measurement in Physics

   • Fundamental & Derived quantities

   • SI system of units

   • Dimensions of physical quantities

   • Dimensional analysis and its applications (checking correctness, conversion, deriving relations, limitations)

2. Vernier Calipers & Screw Gauge

   • Principle & construction

   • Least count and zero error

   • Measurement of length, diameter, depth using Vernier Calipers

   • Measurement of small dimensions (e.g., thickness of wire, diameter of sphere) using Screw Gauge

   • Pitch, least count, and error handling

3. Errors in Measurement

   • Accuracy vs Precision

   • Types of errors: systematic, random, gross

   • Absolute error, relative error, percentage error

   • Error propagation in addition, subtraction, multiplication, division, and powers

   • Significant figures and rules

🎯 Learning Outcomes:

By the end of this course, a student will be able to:

• Understand the role of units and dimensions in physical measurements.

• Apply dimensional analysis to verify equations and solve problems.

• Use Vernier Calipers and Screw Gauge accurately for experimental measurements.

• Identify and minimize errors in experiments.

• Calculate error propagation and express results with correct significant figures.

👩‍🎓 Target Audience:

• Students preparing for NEET / JEE / Board Exams

• Class 11 Physics beginners

• Anyone seeking a strong foundation in experimental physics and measurement

📌 Why This Course is Important:

This is the first step in learning Physics—without correct measurement, no law of Physics can be applied. Whether it’s solving numerical problems, performing lab experiments, or preparing for competitive exams, mastering Units, Dimensions, Instruments, and Errors builds the foundation for entire Physics.