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the ratio between kinetic energy and the total energy of the electrons of hydrogen atom according to bohrs model is1 2 1 21
the emission spectrum of hydrogen is found to satisfy the expression for the energy change teiangle e in joules such thattriangle e 218x101n21 -
which of the following is not true in rutherfords nuclear model of atom1 protons and neutrons are present inside nucleus2 volume of nucleus is very
the value of the energy for the first excited state of hydrogen atom will be1 - 136 ev
the frequency of yellow light having wavelength 600 nm is 1 50x10 14 hz 2 25 x 107
the formation of energy bonds in solids are in accordance with1 heisenbergs uncertainty principle 2bohrs theory3 ohms law4 rutherfords atomic
the energy of a radiation of wavelength 8000 aring is e1 and energy of a radiation of wavelength 16000 aring is e2 what is the relation between
rutherfords alpha particle scattering experiment proved that atom has1 electrons2 neutron3 nucleus 4 orbitalsans
the radius of first bohrs orbit for hydrogen is 053 aring the radius of third bohrs orbit would be1 079
if change in energy deltae 3x 10 -8 j h 664x 10 -34 j-s and c 3x 10 8 ms then wavelength of the light is1 636x 10 3aring
energy of electron of hydrogen atom in second bohr orbit is1-544x10-19 j 2- 544x10-19 kj
in balmer series of hydrogen atom spectrum which electronic transition causes third line1 fifth bohr orbit to second one2 fifth bohr orbit to first
radius of the first bohrs orbit of hydrogen atom is1106 aring
visible range of hydrogen spectrum will contain the following series1 pfund2 lyman3 balmer4 brackettans
the energy of a photon is calculated by1 e hv2 h ev3 h ev4 e hvans e
which one of the following is considered as the main postulate of bohrs model of atom1 protons are present in the nucleus 2 electrons are
in hydrogen spectrum the different lines of lyman series are present is1 uv field2 ir field3 visible field4 far ir fieldans uv
the specific charge of proton is 96 x 106 ckg-1 then for an alpha-particle it will be1 384x 10 7
the radius of the nucleus is related to the mass number a by1 r r0 a12 2
if electron falls from n3 to n 2 then emitted energy is1 102ev
wavelength associated with electron motion1 increases with increase in speed of electron 2remains same irrespective of speed of electron3
the alpha -particle scattering experiment of rutherford concluded that1 the nucleus is made up of protons and neutrons2 the number of electrons is
in an element going away from nucleus the energy of particle1 decreases2 not changing3 increases4 none of theseans
an electronic transition from 1s orbital of an atom causes1 absorption of energy2 release of energy3 both release or absorption of energy4
the first use of quantum theory to explain the structure of atom was made by1 heisenberg2 bohr3 planck4 einsteinans