Surds are important topic in Maths. We are going to discuss here Surds Definition,Types of Surds, Rules of Surds, Conjugate surds, Comparison of Surds, rationalizing surds What is Surds in Maths? Surds are the nth roots of the positive rational number whose values cannot be determined accurately or basically it can not be expressed as […]
Question 1A ball of mass 100 g is projected vertically upwards from the ground with velocity 49 m/s. At the same time other identical ball is dropped from a height of 98 m to fall freely along the same path as followed by the first ball. After some time two balls collide and stick together […]
What is Equilibrium
A rigid body is supposed to be in equilibrium if there is no change in translational motion and no change in rotational motion
The general conditions for equilibrium are as follows
(i) The total force must be zero
(ii) The total torque about any axis must be zero.
In many cases it is convenient to consider torques about axes through the centre of gravity.
Types of equilibrium
We can divide the equilibrium into two categories With respect to the state of a body
1. Static equilibrium.
2. Dynamic equilibrium.
The flow of charge in an electric circuit signifies the existence of electric current in that circuit. We can define electric current as the rate of flow of electric charges (electrons) in a conductor (for example copper or metallic wire). Flow of charge definition The flow of charge is the process of supplying or adding […]
In this article, we will learn about the difference between resistance and resistivity. Students first come across these terms while studying Electricity where the concept of electric current, resistance and resistivity are introduced. For the basic introduction visit our notes on electricity. TLDR – Too Long Don’t ReadBoth resistance and resistivity describe how difficult it […]
What is an Identity An identity is an equality, which is true for all values of the variables in the equality. While an equation is true only for certain values of its variables. An equation is not an identity. Example x+ 2 =5Now this is true for x=3 only.So this is not an identity$(x+1)^2 = […]
Algebra consists of the following topics in Class 8 .(a) Linear equation(b) Laws of Exponents(c) Algebraic Expressions and Identities(d) FactorizationHere are Algebra Formula for Class 8 topic wise Linear Equation What is Linear equation in one Variable We will restrict the above equation with two conditions (a) algebraic equation in one variable(b) variable will have […]
In this article learn about the what is graph in physics and how to plot a basics of graphs in physics. Here you will learn about Why we need graphs What are graphs and How to plot graphs After reading this article students would be able to define graphs and plot graphs using data on […]