# Physics

##### Convex Mirror

Convex Mirror is a curved mirror where the reflective surface bulges out towards the light source. This ...

##### Critical Velocity

What is critical velocity? Critical velocity is defined as the speed at which a falling object reaches ...

##### Curie's Law

According to Curie’s Law, the magnetization in a paramagnetic material is directly proportional to ...

##### Current Coil

Consider a coil of insulated copper wire, wound on a soft iron core, we will put some iron nails on the ...

##### Current Electricity

A few minutes of power outage makes us realise how important electric current is to us. Many inventions ...

##### Cyclic Process

What Is Cyclic Process? The process in which the initial and final state is the same is known as a cyclic ...

##### D’Alembert’s Principle

D’Alembert’s principle states that for a system of mass of particles, the sum of difference of the ...

##### Darcy Weisbach Equation Derivation - Explanation and Applications

Darcy Weisbach Equation statement It is an empirical equation in fluid mechanics named after Henry Darcy ...

##### Davisson Germer Experiment - Electron Diffraction

Initial atomic models proposed by scientists could only explain the particle nature of electrons but ...

##### Decibel

The sound is all around us and can be measured to protect and inform us, as some sounds are not safe. ...

##### Dependence of potential difference (V) across a resistor

Potential difference is defined as the work done to move a unit charge from one point to the other. The ...

##### Derivation of Beer Lambert Law

Beer-Lambert Law derivation helps us to define the relationship of the intensity of visible UV radiation ...

##### Derivation of Biot Savart Law

The derivation of Biot Savart Law is provided in this article. Biot Savart law, named after Jean-Baptiste ...

##### Derivation of Centripetal Acceleration

Centripetal acceleration is the rate of change of tangential velocity. The net force causing the centripetal ...

##### Derivation of Continuity Equation

Derivation of continuity equation is one of the most important derivations in fluid dynamics. The continuity ...

##### Drift Velocity Derivation

Drift velocity is defined as the average velocity attained by the particles (electrons) of a given material ...

##### Derivation of Escape Velocity

Derivation of escape velocity is a very common concept in the kinematics topic of physics and often, ...

##### Derivation of Heat Equation

Derivation of the heat equation can be explained in one dimension by considering an infinitesimal rod. ...

##### Law of Conservation of Momentum Derivation

What is Law of Conservation of Momentum? Law of conservation of momentum states that For two or more ...

##### Derivation of Lens Maker Formula

Lenses of different focal lengths are used for various optical instruments. The focal length of a lens ...

##### Derivation of Mirror Formula

The derivation of mirror formula is one of the most common questions asked in various board examination ...

##### Orbital Velocity Derivation

Orbital velocity is defined as the velocity at which a body (satellite) revolves around the other body ...

##### Derivation of Prism Formula

Prism in Physics is defined as a transparent, polished flat optical element that reflects light. These ...

##### Derivation of Schrodinger Wave Equation

Schrodinger Equation is a mathematical expression which describes the change of a physical quantity over ...

##### Torsion Equation Derivation

Torsion equation or torsion constant is defined as the geometrical property of a bar’s cross-section ...

##### Derivation of Work Energy Theorem

The derivation of work-energy theorem is provided here. The work-energy theorem also known as the principle ...

##### Destructive Interference

Destructive interference takes place when waves come together in such a manner that they completely cancel ...

##### Determination of Focal Length of Concave Mirror and Convex Lens

Before getting started with the experiment, it is important to understand a few terms that are used in ...

##### Deuterium

Hydrogen has many isotopes and deuterium is one of them. It has a proton and a neutron. Protium is the ...

##### Diamagnetism, para-magnetism and ferromagnetism

Magnetic susceptibility of a material is the property used for the classification of materials into Diamagnetic, ...

##### Dielectric Constant

Introduction: Take a small tour to your kitchen, did you ever notice the ceramic cookwares or utensils ...

##### Dielectric Polarization in Polar and Nonpolar Material and Dielectric Constant

Insulators and Dielectric Material Insulators are materials with very poor conductivity. Insulators ...

##### Difference between AC and DC

When we are using electricity do we think which type of current we are using? Alternating Current (AC) ...

##### Difference Between AC and DC Motor

Difference between AC and DC motor is extremely important not only from examination point of view but ...

##### Difference Between Alternator and Generator

Difference between alternator and generator is given here which explains how they are different from ...

##### Difference Between Ammeter and Galvanometer

The major significant difference between ammeter and galvanometer is that ammeter shows only magnitude ...

##### Difference Between Analog and Digital Signal

Analog and Digital signals are the types of signals carrying information. The major difference between ...

##### Difference Between Capacitor and Battery

A battery is an electronic device that converts chemical energy into electrical energy to provide a static ...

##### Difference Between Center of Gravity and Centroid

Every object has some mass and due to gravitational force the object weighs a certain amount. There is ...

##### Difference Between Concave and Convex Mirror

Sl. No. Differentiating Property Concave Mirror Convex Mirror 1 Meaning and Other Names Concave ...

##### Difference Between Conduction Convection and Radiation

The physical act of the transfer of thermal energy between two systems by the dissipation of heat is ...

##### Difference Between Density and Specific Gravity

There is a noticeable difference between density and specific gravity even though both are used to represent ...

##### Difference Between Diffraction and Interference

Waves that originate from two different, coherent sources produce the property termed as Interference, ...

##### Difference Between Discovery and Invention

Discovery can be defined as the recognition of something that already exists as something new. Discoveries ...

##### Difference Between Earth and Neutral

Neutral: Neutral is the return path for an AC circuit that carries current in normal condition. This ...

##### Difference Between Electric Field and Magnetic Field

Magnetic field is an exerted area around the magnetic force. It is obtained by moving electric charges. ...

##### Difference Between EMF and Voltage

EMF stands for electromotive force and is referred to the voltage present at the ends of the source in ...

##### Difference Between Equinox and Solstice

What is Equinox? Equinox refers to a day with an equal duration of day and night. We have two equinoxes ...

##### Difference Between Force and power

What is a Force? A force is a push or pull Acts on an object Requires an agent Is a vector Is ...

##### Difference Between Fuse and Circuit Breaker

Fuse and circuit breakers are one of the critical components of an electrical system. While both circuit ...

##### Difference Between Heat and Temperature

We often talk about heat and temperature in our daily life. Sometimes in terms of weather or sometimes ...

##### Difference Between Isothermal and Adiabatic Process

The major difference between these two types of process is that in adiabatic process, there is no transfer ...

##### Difference Between Kinetics and Kinematics

Both the branches of physics deals with the different forces acting upon an object. Kinematics describes ...

##### Difference Between Land Breeze and Sea Breeze

Breeze is often referred to a gentle to moderate wind. These winds are categorized into two types. Namely ...

##### Difference Between Light Microscope and Electron Microscope

Microscopes come in a variety of sizes, each with its specific suitability. The most common categories ...

##### Differences Between Magma and Lava

Magma is composed of molten rock and is stored in the Earth’s crust. Lava is magma that reaches the ...

##### Difference Between Mass and Weight

Sl. No. Differentiating Property Mass Weight 1 Definition Mass is ...

##### Difference Between a Meteor and a Meteorite

Most of us have seen a shooting star or a meteor. The flash of light that we see in the sky when a small ...

##### Difference Between Momentum and Inertia

Inertia is the resistance offered by a body to the motion whereas momentum is the tendency of a body ...

##### Difference Between NPN and PNP Transistor

In a PNP transistor, the majority charge carriers are holes whereas in NPN the majority charge carriers ...

##### Difference Between Real Image and Virtual Image

When the light rays arising from a single source converge to a particular point, it is referred to a ...

##### Difference Between Resistance and Impedance

Impedance is a concept related to AC whereas resistance is a concept related to DC. Their calculation ...

##### Difference Between RTD and Thermocouple

Resistance Temperature Detectors (RTD) and Thermocouple are the most common sensor types used to measure ...

##### Difference Between Science and Technology

Technology and science are pronounced in the same breath because of their close relationship with each ...

##### Difference Between Simple and Compound Microscope

A magnifying instrument which uses two types of lens to magnify an object with different zoom levels ...

##### Difference between Sound, Noise & Music

What is Sound? A sound is what we hear, right? That’s it? Is it that simple? Physicists tend to complicate ...

##### Difference Between Stars and Planets

A star is a body that possesses a light which causes it to reflect the light on its own. A planet on ...

##### Difference Between Torque and Moment

Motion of an object is referred to the changes in the position with respect to time. Many forces are ...

##### Difference Between Transducer and Sensor

A transducer is a device that is used to convert a non-electrical signal into an electrical signal whereas ...

##### Difference between Violet and Purple

The key difference in understanding these two colours is that Violet is an actual colour that is noticeable ...

##### Difference Between Watts and Volts

Sl. No. Differentiating Property Watts Volts 1 Basic Definition Watts ...

##### Difference Between Work and Power

Power and work are two important concepts in mechanics. The main difference between the two is time. Work ...

##### Differences Between Acceleration and Velocity

Comparison Basis Velocity Acceleration Meaning It alludes to the speed of an ...

##### Optical Instruments

What are Optical Instruments? Optical instruments are devices which use light rays for one of two purposes. Enhancement ...

##### Electric Field of a Dipole

What is Electric Field of a Dipole? A dipole is a separation of opposite electrical charges and it ...

##### Dirac Equation

Before introducing the Dirac equation, it was difficult to explain the behaviour of the particles as ...

##### Glass Prism - Dispersion Of White Light

What is Prism? In optics, a prism is defined as a transparent solid body that has three rectangular ...

##### Displacement as a Function of Time and Periodic Function

To understand this idea of displacement as a function of time, we will have to derive an expression for ...

##### Understanding the Application of Distance - Time Graph

What is a Distance-Time Graph? A distance-time graph shows how far an object has travelled in a given ...

##### Doppler Effect

Doppler effect is defined as the wave energy that travels from two objects such that the wavelength seems ...

##### Drift Velocity

What is Drift Velocity? Subatomic particles like electrons move in random directions all the time. ...

##### Dynamic Lift and Magnus Effect: Applications

What is Dynamic Lift? Dynamic lift is the force that acts on a body by virtue of its motion through ...

##### Dynamics of Rotational Motion About a Fixed Axis

In order to simplify these problems, we define the translational and rotational motion of the body separately. ...

##### Eclipse - Solar Eclipse and Lunar Eclipse

The earth, along with the other planets, revolves around the sun in its orbit. In turn, the moon revolves ...

##### Magnetic Effect of Electric Current

How does magnetic effect works? Let’s start with an experiment, you can do this at home with things ...

##### Effects of Radiation

Radiation is defined as the process of emission and propagation of energy in the form of waves, particles ...

##### Einstein Field Equation

What is Einstein Field Equation? The Einstein Field Equation (EFE) is also known as Einstein’s equation. ...

##### Elastic and Inelastic Collisions

Collision is a situation in which interacting bodies experience large force for a short interval of time. ...

##### Elastic Behaviour of Materials

What happens to a slingshot when you stretch it? It deforms but regains its original shape when you stop ...

##### Elastic Limit

What is elastic limit? Elastic limit is defined as the maximum stress that a material can withstand ...

##### Elastomers

What are Elastomers? Elastomers are polymers that are having viscosity as well as elasticity and therefore ...

##### Electrical Current

The electrical current in basic term is the flow of electric charge. The common electric charge carriers ...

##### Electrical Force

How would you define an electrical force? The repulsive or attractive interaction between any two charged ...

##### Electrical Resistance

When there is no free flow of the electrons in a material due to obstruction created by the electrons ...

##### Electric Charge

Electric charge is a physical property of matter that causes it to experience a force when kept in an ...

##### Electric Circuit

The electric circuits are closed loop or path which forms a network of electrical components, where electrons ...

##### Electric Current: The Flow of Charge

Our ancestors relied on fire for light, warmth and cooking. Today at the flick of a switch, turn of a ...

##### Electric Dipole

Electric Dipole moment is the measure of the polarity of the system. It is the separation of positive ...

##### Electric Field Lines

What is Electric Field Line? Electric field lines are an excellent way of visualizing electric fields. ...

##### Electric Flux - Definition

What is Electric Flux? In this section, we will discuss the concept of electric flux, its calculation ...