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q what is ionisation potential energy for hydrogen atom the energy necessary to remove an electron from first orbit to its outermost orbit ninfin is
q define ionisation potentialthe ionisation potential is that increase speed potential which makes the impinging electron acquires sufficient energy
q state moseleys lawthe frequency of the spectral line in the qualities x-ray spectrum is directly proportional to the square of the atomic number z
q what are the characteristics of laser beam characteristics of laser the laser beam a is monochromatic b is coherent with the waves all exactly in
q calculate the longest wavelength that can be analysed by a rock salt crystal of spacing d 282 ao in the first orderdata d 282 aring 282 times
q what is the principle of millikans oil drop methodprinciple this method is foundation on the study of the motion of uncharged oil drop under free
q an x-ray diffraction of a crystal gave a closest line at an angle of 6o27 if the wavelength of x-ray is 058ao find the distance between the two
q what are the conditions to achieve the laser actionconditions to achieve laser action i there should be an inverted population that is more atoms
q what are coherent sources two sources are alleged to be coherent if they emit light waves of the same wave length and start with same phase or have
what is the excitation threshold of a neuron how does this threshold relate to the all-or-nothing rule of the neural transmissionthe excitation
q define grating elementthe combined width of a slit as well as a ruling in a plane diffraction grating is called as a grating
how is the depolarization of the neuronal plasma membrane generated how does the cell return to its original restwhen the neuron receives a stimulus
q what are electromagnetic waves as-per to maxwell a speed up charge is a source of electromagnetic radiation in an electromagnetic wave electric as
how do the sodium and potassium ions maintain the resting potential of the neuronthe plasma membrane of the neuron when at rest maintains an electric
q what are uses of ultra-violet radiations uses of ultra-violet radiations i they are utilized to destroy the bacteria and for sterilizing surgical
q in youngs double slit experiment the distance between the slits is 19 mm the distance between the slit and the screen is 1 m if the bandwidth is
q what are the uses of raman spectrum i it is widely utilized in almost all branches of scienceii raman spectra of dissimilar substances enable to
which is the normal sign of the electric charge among the two sides of the neuron plasma membrane what is the potential difference voltage generated
q what is raman shift in 1928 sir cv raman fined out experimentally that the monochromatic light is scattered when it is allowed to pass through a
q state brewsters lawbrewsters law the digression of the polarising angle is numerically equal to the refractive index of the mediumthat is tan ip
what is the nature of the stimulus received and transmitted by the neurons neurons receive and transmit chemical stimuli by neurotransmitters
q what is fluorescencewhen an atomic or else molecular system is excited into higher energy state by absorption of energy it returns back to lower
q what is fraunhofer diffractiona the source as well as the screen are at infinite distances from the obstacle producing diffractionb the wave front
q what is fresnel diffractiona the source as well as the screen are at finite distances from the obstacle producing diffractionb the wave front
what are the protective structures of the central nervous system present in vertebrates in vertebrates the brain and the spinal cord are protected by