356535 The ground state energy of an atom is \(-217.8 \,{eV}\). Photon emitted during the transition of electron from \(n=3\) to \(n=1\) state, is incident on a photosensitive material of unknown work function. The photoelectrons are emitted from the materials with a maximum kinetic energy of \(190.29 {eV}\). The threshold wavelength of the material used is
(Take \({h}=6.62 \times 10^{-34} {Js}\) ]

356536 If elements with principal quantum number \(n > 4\) were not allowed in nature, then the number of possible elements would be

356537 The classification of discrete energy levels in atoms was first given experimentally by

356538 Assertion :
In a metal all the free electrons are in same energy band.
Reason :
Electrons do not obey Pauli's exclusion principle.

356535 The ground state energy of an atom is \(-217.8 \,{eV}\). Photon emitted during the transition of electron from \(n=3\) to \(n=1\) state, is incident on a photosensitive material of unknown work function. The photoelectrons are emitted from the materials with a maximum kinetic energy of \(190.29 {eV}\). The threshold wavelength of the material used is
(Take \({h}=6.62 \times 10^{-34} {Js}\) ]

356536 If elements with principal quantum number \(n > 4\) were not allowed in nature, then the number of possible elements would be

356537 The classification of discrete energy levels in atoms was first given experimentally by

356538 Assertion :
In a metal all the free electrons are in same energy band.
Reason :
Electrons do not obey Pauli's exclusion principle.

356535 The ground state energy of an atom is \(-217.8 \,{eV}\). Photon emitted during the transition of electron from \(n=3\) to \(n=1\) state, is incident on a photosensitive material of unknown work function. The photoelectrons are emitted from the materials with a maximum kinetic energy of \(190.29 {eV}\). The threshold wavelength of the material used is
(Take \({h}=6.62 \times 10^{-34} {Js}\) ]

356536 If elements with principal quantum number \(n > 4\) were not allowed in nature, then the number of possible elements would be

356537 The classification of discrete energy levels in atoms was first given experimentally by

356538 Assertion :
In a metal all the free electrons are in same energy band.
Reason :
Electrons do not obey Pauli's exclusion principle.

356535 The ground state energy of an atom is \(-217.8 \,{eV}\). Photon emitted during the transition of electron from \(n=3\) to \(n=1\) state, is incident on a photosensitive material of unknown work function. The photoelectrons are emitted from the materials with a maximum kinetic energy of \(190.29 {eV}\). The threshold wavelength of the material used is
(Take \({h}=6.62 \times 10^{-34} {Js}\) ]

356536 If elements with principal quantum number \(n > 4\) were not allowed in nature, then the number of possible elements would be

356537 The classification of discrete energy levels in atoms was first given experimentally by

356538 Assertion :
In a metal all the free electrons are in same energy band.
Reason :
Electrons do not obey Pauli's exclusion principle.