Home
Class 12
PHYSICS
A hydrogen atom and a Li^(2+) ion are b...

A hydrogen atom and a `Li^(2+)` ion are both in the second excited state. If `l_H` and `l_(Li)` are their respective electronic angular momenta, and `E_H and E_(Li)` their respective energies, then

A

`l_(H)gtl_(Li) and |E_(H)|gt|E_(Li)|`

B

`l_(H)=l_(Li) and |E_(H)|lt|E_(Li)|`

C

`l_(H)ltl_(Li) and |E_(H)|gt|E_(Li)|`

D

`l_(H)gtl_(Li) and |E_(H)|gtgt|E_(Li)|`

Text Solution

Verified by Experts

The correct Answer is:
B
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • NTA JEE MOCK TEST 51

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos

  • NTA JEE MOCK TEST 53

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos

Similar Questions

Explore conceptually related problems

A Hydrogen atom and Li^(++) ion are both in the second excited state. If L_(H) and L_(Li) are their respective angular momenta, and E_(H) and E_(Li) their respective energies, then:

Calculate the energy of Li^(+2) atom for 2^(nd) excited state.

Knowledge Check

  • A hydrogen atom and a Li^(2+) ion ae both in the second excited state . If l_H and l_(li) are their respective angular momentum in an orbit and E_H and E_(Li) are their respective enrgies, then :

    A
    `l_H gtl_(Li)` and `E_H gtE_(Li`
    B
    `l_H gtl_(Li)` and `E_H gtE_(Li`
    C
    `l_H gtl_(Li)` and `E_H gtE_(Li`
    D
    `l_H gtl_(Li)` and `E_H gtE_(Li)`

  • A Hydrogen alon and Li^(++) ion are both in the second excired state . If l_(H) and l_(Li) are their respective energies, then

    A
    `l_(H) gt l_(LI) `and `|E_(H)|gt |E_(Li)|`
    B
    `l_(H) = l_(LI) `and `|E_(H)|lt |E_(Li)|`
    C
    `l_(H) = l_(LI) `and `|E_(H)|gt |E_(Li)|`
    D
    `l_(H) gtltl_(LI) `and `|E_(H)|gtlt|E_(Li)|`

  • If energy of the electron in hydrogen atom in some excited state is -3.4e V then what will be its angular momentum

    A
    `1.8 xx10^(-30) kgm^(2)s^(-1)`
    B
    `2.1 xx10^(-34) kgms^(2) s^(-1)`
    C
    `9.2 xx 10^(-37) kgm^(2) S^(-1)`
    D
    `1.2 xx10^(-32) kgm^(2) s^(-1)`

    • Similar Questions

    Explore conceptually related problems

    In a container a mixture is prepared by mixing of three samples of hydrogen helium ion (He^(+)) and lithium ion (Li^(2+)). In sample , all the hydrogen atoms are in 1st excited state and all the He^(+) ions are in third excited state and all the Li^(2+)) ions are in fifth excited state. Find the total number of spectral lines observed in the emission spectrum of such a sample when the electrons return back to the ground state.

    The ground state energy of hydrogen atom is -13.6 eV . The energy of second excited state of He^(+) ion in eV is

    Consider atoms H, He^(+), Li^(++) in their ground states. If L_(1), L_(2) and L_(3) are magnitude of angular momentum of their electrons about the nucleus respectively then:

    Ionization energy of a hydrogen-like ion A is greater than that of another hydrogen like ion B . Let r, u, E and L represent the radius of the orbit , speed of the electron , total energy of the electron and angular momentum of the electron respectively (for the same n ). In ground state :

    In hydrogen atom, energy of the first excited state is -3.4 eV . Then find out the K.E. of the same orbit of H-atom

    Home
    Profile