Conservative Force: A force is said to be conservative if the work done by the force (or against the force) in moving a body depends only upon the initial and final positions of the body and is independent of the path followed between the initial and final positions. The gravitational force is a conservative force. Read more about Conservative and Non Conservative Forces[…]
Periodic Functions: A function f(x) is said to be a periodic function if there exists a positive real number T such that f (x+ T) = f (x) for all x ϵ R. We know that Sin (x + 2x) = sin (x + 4x) = … = sin x And, cos (x + 2x) Read more about Periodic Functions[…]
S-block: The s-block elements are metals. Metals are usually solids at room temperature. Metals usually have high melting and boiling points. They are good conductors of heat and electricity. They are malleable (can be flattened into thin sheets by hammering) and ductile. P-block: The p-block contains metals, metalloids (or semi-metals) and non-metals. Non-metals are usually Read more about Types of elements in s, p, d and f blocks[…]
If no external torque is acting upon a body rotating about an axis, then the angular momentum of the body remains constant, that is, J = I ω = constant This is called the ‘law of conservation of angular momentum’. If I decreases, ω increases and vice versa. Proof: We have read above that when Read more about Conservation of Angular Momentum[…]
Definition: Let f: A → B and g: B → C be two functions. Then a function gof: A → C defined by (gof)(x) = g(f(x)), for all x ϵ A is called the composition of f and g.Note 1: It is evident from the definition that gof is defined only if for each x Read more about Composition of Functions[…]
Radial nodes: Radial nodes are nodes inside the orbital lobes Angular nodes: angular nodes are not internal countours of electron probability, but rather are planes that go through the orbital Total number of nodes = n – 1 Total number of Angular nodes = 1 Total number of Radial nodes = (n – 1 – 1) n is Read more about Nodes[…]