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when a body or a moving particle repeats its motion along an exact path after regular parts of time its rotation is said to be periodic motion and
1 particle travels in straight line and the motion is periodic2 the acceleration of particle is always proportional to the displacement from the
if a particle in periodic motion moves back and forth or to and fro over the same path then its motion it is called as vibratory or oscillatory the
a spectrometer is required for creating pure spectrum of a source in laboratory and measuring of of material of prism and of a transparent liquidit
the formula ya cos t-xv describes a wave that moves in the x direction along a stretched string show that this formula is a solution of the
how can u call off the potential energy of an object when the world is full of refrences and the world itself is relative what would be
when white wave passes by a semi-transparent solid or liquid or gas its spectrum have certain dark lines or bands such spectrum is known as
i it having of dissimilar bright linesii it is given by an excited source in atomic stateiiieg spectrum of excited helium mercury vapours sodium
i it has of continuously varying wavelengths in a exact wavelength rangeii it is given by solids liquids and highly compressed gases heated to high
when wave emitted by a self luminous object is dispersed by a prism to get the spectrum the spectrum is known as emission
the ordered arrangements of radiations according to wavelengths or frequencies are called as spectrum spectrum may be divide in two parts emission
under particular condition light can also suffer inelastic scattering from molecules in which its wavelength
when the wavelength of wave remains unchanged the scattering is known as
some phenomenon based on scatteringi sky looks blue because of scatteringii at the starting time of sunrise or sunset sun looks reddishiii danger
molecules of a medium after absorbing incoming light radiations sends them in all direction this process is called as
specific heat of a gas is numerically equivalent to the amount of heat essential to raise the temperature of unit mass of gas by 10c in order to
an atom in a solid state has no degrees of freedom for transnational and rotational speed at great temperatures due to vibration along 3 axes it
a polyatomic non-linear molecule like nh3 can rotate about any of three co-ordinate dimension as it has 6 degrees of freedom 3 rotational and 3
the molecules of diatomic and linear polyatomic gases are made up of two atoms joined rigidly to one another by a bond such a particle cannot only
the number of independent directions in which a system or gas molecule can have motion are called as the number of degrees of freedom of that
in an adiabatic process the body neither absorbs heat nor does it refuse energy ie in this phenomena there is no heat exchange delta q 0thus
a thermodynamic process in which the volume of gas always same is known as isochoric process in this process the work completed by the body is
when a system returns back to its initial state after passing by dissimilar phase the phenomena is said to be a cyclic process in this process as
first law of thermodynamics is stand on the principle of the conservation of power according to the first lawdeltaq w deltau