What are the differences between scalars and vectors? Scalars vectors Physical quantities having magnitude only but no direction . Physical quantities having magnitude and direction . These quantities are completely described by: 1:a number 2:a suitable unit These quantities are completely described by: 1:a numbers 2:by a suitable unit 3:By certain direction These quantities are added ,subtracted ,multiplied ...

Read More »## Mechanics and its different branches in physics

What is mechanics in physics? The branch of science that deals with the study of motion of body,its causes and effects. The importance of mechanics It is the oldest of the physical sciences,is the study of the motion of objects.The calculation of the path of a baseball or of a space probe sent to Mars is among its problems,as is ...

Read More »## types of vectors in physics with images

A vector is represented graphically by a directed line segment or an arrow head line segment.The length of line,according to the scale chosen ,represents the magnitude of the vector while arrow head indicates the direction.Also they follow triangle law of addition.For example force,acceleration,torque,momentum ,angular momentum etc.To represent a vector we need: A suitable scale Reference axis x,y & z axis ...

Read More »## Logic gates:AND,OR,NOT,NAND,NOR with truth table and applications

What are universal logic gates? Digital systems A digital systems deals with quantities or variable which have only two discrete values or states. The examples of such quantities are: A switch can be either open or close. A certain statement can be either true or false. The answer of a question can be either yes or no. A bulb can ...

Read More »## Difference between astable monostable and bistable multivibrator

what is multivibrator? The name mutivibrator designates a group of the circuits widely applied for switching as shift registers or temporary memories and as square were timing oscillator or clocks. These circuits are basically closed loop feedback circuits operating with the feedback. Types of multivibrators There are three general types of multivibrators, which are: The astable or free running mutivibrator ...

Read More »## Schrodinger time dependent wave equation derivation

Schrodinger time independent wave equation derivation Schrodinger time dependent wave equation derivation Consider a particle of mass “m” with velocity “v” and under the influence of potential energy (P.E) which is represented by V(r) .The total energy of the particle is the sum of potential energy (P.E) and kinetic energy (K.E) which is given by: This is ...

Read More »## Schrodinger time independent wave equation derivation

Schrodinger time dependent wave equation What is schrodinger wave equation? In classical mechanics the motion of a body is given by Newton’s second law of motion.But elementary particles like electron,protons and photons possess wave properties as well,therefore another equation instead of Newton’s second law equation ( F=ma) is required for describing their motion.The new equation must take into account wave ...

Read More »## What is difference between electromagnetic waves and matter waves?

Difference between electromagnetic waves and matter waves in tabular form Electromagnetic waves Matter waves These waves have electric and magnetic fields associated with them. Matter waves have no electric and magnetic fields associated with them. These waves can easily pass through vacuum. These waves cannot pass through vacuum. ...

Read More »## Planck’s radiation law and quantum theory of radiation

Definition Planck’s radiation law Rayleigh Jeans law and Wien’s formulae were failed to solve the problem of distribution of spectral radiancy among various wavelengths in cavity radiations because these formulas were based upon the classical theory. Planck’s quantum theory of radiation In 1900,Max Planck gave the new concept about the nature of radiation,called quantum theory of radiation in which planck ...

Read More »## Dual nature of matter and De broglie wavelength

What is dual nature of matter? Our mental views of wave and particles are drawn from familiarity with very large scale objects such as tennis balls and ocean waves.Like paul Davies ,physicist and science writer it is impossible to visualize a wave particle so do not try what then are we to do? Neil Bohr views According to Neil Bohr ...

Read More »