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The total number of uniparied electrons in d – orbitals of atoms of element of atomic number 29 is (a) 10 (b) 1 (c) 0 (d) 5
28
Nov
The total number of uniparied electrons in d – orbitals of atoms of element of atomic number 29 is (a) 10 (b) 1 (c) 0 (d) 5 The total number of uniparied electrons in d - orbitals of atoms of element of atomic number 29 is (a) 10 (b) 1 (c) 0 (d) 5 November [...]
An excited He+ ion emits two photons in succession, with wavelengths 108.5 nm and 30.4 nm, in making a transition to ground state. The quantum number n, corresponding to its initial excited state is (for photon of wavelength λ, energy E=1240eV/λ(in nm) ;
28
Nov
An excited He+ ion emits two photons in succession, with wavelengths 108.5 nm and 30.4 nm, in making a transition to ground state. The quantum number n, corresponding to its initial excited state is (for photon of wavelength λ, energy E=1240eV/λ(in nm) ; An excited He+ ion emits two photons in succession corresponding to its [...]
THe maximum number of electrons that can be accommodated in ‘f’ sub shell is (a) 2 (b) 8 (c) 32 (d) 14
28
Nov
THe maximum number of electrons that can be accommodated in ‘f’ sub shell is (a) 2 (b) 8 (c) 32 (d) 14 THe maximum number of electrons that can be accommodated in 'f' sub shell is (a) 2 (b) 8 (c) 32 (d) 14 November 28, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
Two radioactive substances A and B have decay constants 5λand λ respectively. At t=0, a sample has the same number of two nuclei. The time taken for the ratio of number of nuclei to become (l/e)^2 will be
28
Nov
Two radioactive substances A and B have decay constants 5λand λ respectively. At t=0, a sample has the same number of two nuclei. The time taken for the ratio of number of nuclei to become (l/e)^2 will be a sample has the same number of two nuclei. The time taken for the ratio of number [...]
In Li++, electron in first Bohr orbit is excited to a level by a radiation of wavelength λ. when the ion gets de excited to the ground state in all possible ways (including intermediate emissions), a total of six spectral lines are observed. What is the value of λ ? (Given : h = 6.63 × 10^−34Js; c = 3 × 10^8ms^−1) ;
28
Nov
In Li++, electron in first Bohr orbit is excited to a level by a radiation of wavelength λ. when the ion gets de excited to the ground state in all possible ways (including intermediate emissions), a total of six spectral lines are observed. What is the value of λ ? (Given : h = 6.63 [...]
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a total of six spectral lines are observed. What is the value of λ ? (Given : h = 6.63 × 10^−34Js; c = 3 × 10^8ms^−1) ; ,
electron in first Bohr orbit is excited to a level by a radiation of wavelength λ. when the ion gets de excited to the ground state in all possible ways (including intermediate emissions) ,
In Li++ ,
Numbered of unparied electrons in 1s^2 2s^2 2p^3 is (a) 2 (b) 0 (c) 3 (d) 1
28
Nov
Numbered of unparied electrons in 1s^2 2s^2 2p^3 is (a) 2 (b) 0 (c) 3 (d) 1 Numbered of unparied electrons in 1s^2 2s^2 2p^3 is (a) 2 (b) 0 (c) 3 (d) 1 November 28, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
The electronic configuration 1s^2 2s^2 2px^1 2py^1 2pz^! is of (a) oxygen (b) nitrogen (c) hydrogen (d) fluorine
28
Nov
The electronic configuration 1s^2 2s^2 2px^1 2py^1 2pz^! is of (a) oxygen (b) nitrogen (c) hydrogen (d) fluorine The electronic configuration 1s^2 2s^2 2px^1 2py^1 2pz^! is of (a) oxygen (b) nitrogen (c) hydrogen (d) fluorine November 28, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
The number of electrons in the atom which has 20 protons in the nucleus (a) 20 (b) 10 (c) 30 (d) 40
28
Nov
The number of electrons in the atom which has 20 protons in the nucleus (a) 20 (b) 10 (c) 30 (d) 40 The number of electrons in the atom which has 20 protons in the nucleus (a) 20 (b) 10 (c) 30 (d) 40 November 28, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
Number of orbitals in h sub – shell is (a) 11 (b) 15 (c) 17 (d) 19
28
Nov
Number of orbitals in h sub – shell is (a) 11 (b) 15 (c) 17 (d) 19 Number of orbitals in h sub - shell is (a) 11 (b) 15 (c) 17 (d) 19 November 28, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
A solution of colourless salt H on boiling with excess NaOH produces a non-flammable gas. The gas evolution ceases after sometime. Upon addition of Zn dust to the same solution, the gas evolution restarts. The colourless salt(s) H is/are
28
Nov
A solution of colourless salt H on boiling with excess NaOH produces a non-flammable gas. The gas evolution ceases after sometime. Upon addition of Zn dust to the same solution, the gas evolution restarts. The colourless salt(s) H is/are A solution of colourless salt H on boiling with excess NaOH produces a non-flammable gas. The [...]