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
Promotional Banner

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:

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

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

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

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 :

NTA MOCK TESTS-NTA JEE MOCK TEST 52-PHYSICS
  1. A hydrogen atom and a Li^(2+) ion are both in the second excited stat...

    Text Solution

    |

  2. A box is put on a scale which is adjusted to read zero, when the box i...

    Text Solution

    |

  3. A particle of mass m is suspended from a ceiling through a string of l...

    Text Solution

    |

  4. Graph of position of image vs position of point object from a convex l...

    Text Solution

    |

  5. In the given circuit the R.M.S values of voltages across the capacitor...

    Text Solution

    |

  6. Two long coaxial cylindrical metal tubes (inner radius a, outer radius...

    Text Solution

    |

  7. Using the conservation laws, demonstrate that the total mechanical ene...

    Text Solution

    |

  8. The figure shows a system of two concentric spheres of radii r1 and r2...

    Text Solution

    |

  9. As shown in figure the tension in the horizontal cord is 30 N. The wei...

    Text Solution

    |

  10. Find the decay constant of .^(55)Co radio nuclide if its activity is k...

    Text Solution

    |

  11. The equation of a simple harmonic progressive wave is given by y = A s...

    Text Solution

    |

  12. The potential energy of a particle varies as . U(x) = E0 for 0 le x...

    Text Solution

    |

  13. A sphere of radius 0.1m and mass 8 pi kg is attached to the lower en...

    Text Solution

    |

  14. An observer can see through a pin-hole the top end of a thin rod of he...

    Text Solution

    |

  15. A cubical block of side a is moving with velocity v on a horizontal sm...

    Text Solution

    |

  16. A particular semiconductor in equilibrium has 1xx10^(16)cm^(-3) donor ...

    Text Solution

    |

  17. One mole of monatomic ideal gas undergoes the process ArarrB , as in t...

    Text Solution

    |

  18. If x, v and a denote the displacement, the velocity and the accelerati...

    Text Solution

    |

  19. An open pipe is in resonance in 2nd harmonic with frequency f(1). Now ...

    Text Solution

    |

  20. A 0.5kg block slides from the point A on a horizontal track with an in...

    Text Solution

    |