📘 Exercise 2.1
Learn and practice Class 9 Mathematics Exercise 2.1 on Logarithms with step-by-step solutions. This page includes free downloadable notes and solved examples aligned with the Punjab PECTAA 2025 syllabus.
Quick Links:
Chapter 1
Real Numbers
Chapter 2
Logarithms
Chapter 3
Sets and Functions
Chapter 4
Factorization and Algebraic Manipulation
Chapter 5
Linear Equations and Inequalities
Chapter 6
Trigonometry
Chapter 7
Coordinate Geometry
Chapter 8
Logic
Chapter 9
Similar Figures
Chapter 10
Graphs of Functions
Chapter 11
Loci and Construction
Chapter 12
Information Handling
Chapter 13
Probability
Exercise 2.1 - Logarithms
This exercise focuses on scientific notation and logarithm fundamentals, including converting numbers between standard and scientific notation.
Exercise 2.1 provides practice problems that help students understand scientific notation, convert numbers between standard and scientific form, and apply these concepts to real-world measurements like the speed of light and Earth's circumference.
The exercise covers converting large and small numbers to scientific notation, expressing numbers in ordinary notation, and applying scientific notation to physical measurements and constants.
Key Topics Covered
- Converting numbers to scientific notation
- Expressing numbers in ordinary notation
- Working with positive and negative exponents
- Applying scientific notation to real-world measurements
- Understanding the speed of light in scientific notation
- Expressing Earth's circumference in scientific form
Important Note:
Scientific notation is essential for working with very large or very small numbers. A number is written in scientific notation when it's in the form a × 10ⁿ, where 1 ≤ a < 10 and n is an integer.
Created by Hira Science Academy | Aligned with PECTAA 2025 Syllabus