Vector dot product and cross product are two types of vector product,the basic difference between dot product and scalar product is that in dot product,product of two vectors is equal to scalar quantity while in scalar product,product of two vectors is equal to vector quantity. dot product Vs cross product Dot product or scalar product Cross product or vector ...

Read More »## Difference between reversible and irreversible process in thermodynamics

The basic difference between reversible and irreversible process is that in reversible process the system remains in thermodynamic equilibrium ,while in irreversible process the system does not remain in thermodynamic equilibrium. Reversible process in thermodynamics “A process which can be retracted in exactly reverse order without producing any change in the surroundings is called reversible process”. In the reverse process, ...

Read More »## Derivation of First equation of motion in physics

First equation of motion (Vf =Vi + at) deals with final velocity,initial velocity,acceleration and time.We can use 1st equation of motion to find final velocity,initial velocity,acceleration and time. First equation of motion derivation Consider a body is moving with initial velocity “Vi” with uniform acceleration “a” as shown in figure.After time “t” its velocity becomes “Vf”.The total distance covered by ...

Read More »## Capacitance of a capacitor

Capacitance of a capacitor is the ability of capacitor to store an electric charge per unit of voltage across its plates of a capacitor .Capacitance is find by dividing electric charge with voltage by the formula C=Q/V .Its unit is Farad. Formula Its formula is given as: C=Q/V Where C is capacitance,Q is voltage,and V is voltage.We can also find charge Q ...

Read More »## kepler’s laws of planetary motion definition and equation

Kepler’s laws of planetary motion are expressed as:(1) All the planets move around the Sun in the elliptical orbits, having the Sun as one of the foci. (2) A radius vector joining any planet to Sun sweeps out equal areas in equal intervals of time.(3) The square of the period of any planet about the sun is proportional to the cube of the ...

Read More »## list of elementary particles

How many types of elementary particles are there? The elementary particles are simple particles which are not the combination of other particles. For example, an electron is an elementary particle. There are 30 elementary particles out of which the following 7 elementary particles are stable out the nucleus. List of elementary particles Electron Proton Neutron Photon Neutrino Antineutrino Positron Anti-proton ...

Read More »## Examples of transverse and longitudinal waves

Transverse and longitudinal waves are types of mechanical waves.The basic difference between transverse and longitudinal waves is that in transverse waves particles of waves move perpendicular in the direction of wave while in longitudinal waves particles move horizontally in the direction of wave. Now! Stay with us to know the examples of transverse and longitudinal waves in few minutes. What ...

Read More »## Atmospheric pressure:Definition,formula & applications

Atmospheric pressure is the weight of air per unit area.Its value varies with altitude.The value of atmospheric pressure at sea level is 1.013 x105 N/m2 The Earth is surrounded by a cover of air called atmosphere. It extends to a few hundred kilometers above sea level. Just as certain sea creatures live at the bottom of ocean, we live at the ...

Read More »## Properties and applications of laser light

Properties of laser light are given in the list light of laser is highly monochromatic Its light is highly coherent laser light is highly directional light of laser can be sharply focused Now we will discus in detail about characteristics of laser light Laser light is highly monochromatic Tungsten light spread over a continuous spectrum, gives no basis for comparison. ...

Read More »## Galvanometer and ammeter

Galvanometer and ammeter are both current measuring devices.The galvanometer is used to measure very small current while ammeter is used to measure very large current up to 10 A. Now! We study in detail about these two instruments and we will also see the difference between galvanometer and ammeter. What is galvanometer? It is an electrical device which is used to ...

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