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energy in transmitted in space in all directionexample light and sound waves propagating in
energy is transmitted in a plane in two mutually perpendicular directionsexample wave propagating on the surface of
energy is transferred in a one direction onlyexample wave propagating in a stretched
the waves which do not needs medium for their propagation are known as non- mechanical or electromagnetic wavesexamples light heat infrared radio
the waves which needs medium for their propagation are known as mechanical wavesexample waves on string and spring waves on water surface sound
a it is a sort of disturbance which goes by a mediumb material phase is necessary for the propagation of mechanical wavesc when a wave motion goes by
essential properties of the medium for wave propagationi elasticity so that particle can return to their mean position after having been
a wave is a disturbance which transmits power and momentum from one place to the other without the transport of
a formation of domainsb on the basis of domains formedc these are strongly attracted in an external magnetic field ie they easily go from low to high
a spin motion of electronsb on the basis of spin and orbital motion of electronsc these are feebly attracted in an external magnetic field ie have a
a orbital movement of electronsb on the source of orbital motion of electronsc these
on the basis of mutual interactions or behavior of several materials in an external magnetic field the materials are dividing in three basic
magnetic instruments are used to find out the magnetic moment of a bar magnet find out the horizontal component of earths magnetic field compare the
at the neutral position magnetic field because of the bar magnet is just equal and opposite to the horizontal component of earths magnetic
over the universe differ in magnitude from place to place it is get that many places have the similar value of magnetic components the lines are
it is the degree to which a object is magnetized when placed in a magnetic fieldit can also be described as the pole strength per unit cross
it is the degree or extent by which magnetic lines of force can enter a substance and is expressed by
introduction a country gets specialisation in a specific commodity due to diversification of economic resources this stimulates a country to go
objectiveafter studying this unit you should be able to1 explain the importance of international trade2 discuss why a fm is motivated to
the molecular theory of magnetism was given by weber and modified later by ewing according to that theory -each molecule of a substance is a complete
the delay in regaining the original state by a body after the removal of the deforming force is known as elastic after effectin electrometers and
it is the need of elastic strength of a substance when subjected to repeated stresses and strain if the substance is reserved undisturbed for some
i effect of temperature a in general elasticity reduces as the temperature increasesb invar is an exception there is no effect of temperature on
using formulas absolute addresses and x-y plotsupplies are dropped from an airplane to land at a certain point the velocity of the package at
there are five types of modulus of elasticityi youngs modulus of elasticity yii bulk modulus of elasticity kiii compressibilityiv modulus of