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q define specific rotationprecise rotation for a given wavelength of light at a given temperature is defined as the rotation produced by
q define optic axis of a crystal in a double refracting crystal there is a particular direction in which both the rays travel with same velocity this
q in newtons ring experiment the diameter of certain order of dark ring is measured to be double that of the second ring what is the order of the
q what is tyndal scatteringtyndal scattering- when light passes throughout a colloidal solution its path is visible inside the solution this is for
q a light of wavelength 60000a falls normally on a thin air film 6 dark fringes are seen between two points compute the thickness of the film2mut
q what is band emission spectrum give an exampleit consists of a numerous bright bands with a sharp edge at one end but fading out at the other end
q in youngs double slit experiment the width of the fringe obtained with light of wavelength 60000a is 2 mm calculate the fringe width if the entire
q why does the sky appear blue in colour as-per to the rayleighs scattering law the shorter wavelengths are scattered much more than the longer
q a 300 mm long tube containing 60 cc of sugar solution produces a rotation of 90 when placed in a polarimeter if the specific rotation is 600
q what are emissive and absorption spectra emission spectrum when the light emitted straight from a source is examined with a spectrometer the
q an emf of 5 v is persuading when the current in the coil changes at the rate of 100 as-1 find the coefficient of self induction solutioninduced emf
q a capacitor of capacitance 2 muf is in an ac circuit of 1000 hz compute the reactance of itsolutioncapacitive reactance xc
q in an ideal transformer the transformer ratio is 120the input voltage and the input power are 6 v and 600 mw respectively compute the primary and
q a capacitor of capacitance 2 muf is in an ac circuit of frequency 1000 hz if the rms value of the applied emf is 10 v find the effective current
q why can a dc ammeter not read aca dc ammeter cant measure ac because ac is changing continuously and periodically as well as a dc ammeter can just
q a coil of area of cross section 05 m2 among 10 turns is in a plane perpendicular to a magnetic field of 02 wb m2 compute the flux through the
q an aircraft having awing of 10 m flies at a speed of 720 kmph if the vertical component of the earths magnetic field is 3 x 10-5 t calculate
q an aircraft having awing of 2048 m flies at a speed of 40 ms-1 if the vertical component of the earths magnetic field is 2 x 10-5 t compute
q define the unit of self inductanceone henry is described as the self-inductance of a coil in which a change in current of one ampere per second
q compute the mutual inductance between two coils when a current of 4 a changing to 8 a in 05 s in one coil induces an emf of 50 mv in the other coil
q define q- factor the q factor of a series resonant circuit is described as the ratio of the voltage across a coil or capacitor to the applied
q what is acceptor circuit give the uses of it acceptor circuit the series resonant circuit is frequently called an acceptor circuit by proffering
q a capacitor blocks dc but allows ac whycapacitive reactance xc 1omegac 1 2pinuc where nu is the frequency of the ac
q define rms value of ac rms value of ac the rms value of alternating current is described as that value of the steady current which when passed
q what are the various energy losses of a transformer energy losses in a transformer a hysteresis loss b copper loss c eddy current loss iron loss d