02. Short Notes: Polynomials
Polynomial Algebraic Identities Algebraic identities are equations that hold true for all values of the variables involved. They are fundamental tools […]
1 Maths for Class 9 - ( New NCERT )
1 Maths for Class 9 - ( New NCERT )
1. Short Notes: Number System
Introduction MULTIPLE CHOICE QUESTION Try yourself: The decimal expansion of an irrational number is:View Solution Types of Numbers 1. Natural Numbers
1 Science for Class 9 ( New NCERT )
13. Short and Long Answer Questions: Earth as a System: Energy, Matter, and Life
Short Answer Type Questions Ques1: What is insolation? What is the value of the solar constant and why is it significant?
1 Science for Class 9 ( New NCERT )
12. Short and Long Answer Questions: Patterns in Life: Diversity and Classification
Short Answer Type Questions Ques 1: What is biodiversity? Why is it essential for the stability of life on Earth? Ans: Biodiversity
1 Science for Class 9 ( New NCERT )
11. Short and Long Answer Questions: Reproduction: How Life Continues
Short Answer Type Questions Ques 1: What is vegetative propagation? Give three examples of plants that reproduce by this method. Ans: Vegetative
1 Science for Class 9 ( New NCERT )
10. Short and Long Answer Questions: Sound Waves: Characteristics and Applications
Short Answer Type Questions Ques 1: What is vibration? How does it help in the production of sound? Ans: Vibration refers to
1 Science for Class 9 ( New NCERT )
09. Short and Long Answer Questions: Atomic Foundations of Matter
Short Answer Type Questions Ques 1: State the Law of Conservation of Mass. Who proposed it and when? Does this
1 Science for Class 9 ( New NCERT )
08. Short and Long Answer Questions: Journey Inside the Atom
Short Answer Type Questions Ques 1: What were the contributions of Acharya Kanada and the Greek philosophers Leucippus and Democritus
1 Science for Class 9 ( New NCERT )
07. Short and Long Answer Questions: Work, Energy, and Simple Machines
Short Answer Type Questions Ques 1: Define work done by a constant force. Write its SI unit and state under what
1 Science for Class 9 ( New NCERT )
06. Short and Long Answer Questions: How Forces Affect Motion
Short Answer Type Questions Ques 1: What is force? State its SI unit and explain why force is called a vector