Home
Class 12
PHYSICS
If the energy of a hydrogen atom in n^(t...

If the energy of a hydrogen atom in `n^(th)` orbit is `E_n` then energy in the nth orbit of a singly ionized helium atom will

A

`4E_n`

B

`E_n/4`

C

`2E_n`

D

`E_n//2`

Text Solution

Verified by Experts

The correct Answer is:
A
`E_nprop Z^2 :. (E_(He^(+)))/(E_H)=((2)^2)/((1)^2)=4`
`E_(He^(+))= 4E_H=4E_n " "(E_H=E_n)`
Doubtnut Promotions Banner Mobile Dark
|

Similar Questions

Explore conceptually related problems

If the energy of a hydrogen atom in nth orbit is E, then energy in the n^(th) orbit of a singly ionized helium atom will be:

Assertion : Ifa, is the radius of Bohr's first orbit then the radius of the electron in the first orbit of singly ionised helium is 2a_(0) Reason : For an element of charge number Z, having an hydrogen-like atom the radius of the nth orbit is proportional to Z.

Knowledge Check

  • Energy of hydrogen atom in the second exited state is

    A
    miinus 3.4 eV
    B
    minus 1.51 eV
    C
    1.51 eV
    D
    3.4 eV

  • In the Bohr model of a hydrogen atom, the ratio of the kinetic energy to the total energy of the electron is

    A
    `-1`
    B
    `-2`
    C
    `+1`
    D
    `+1/2`

  • The wavelength of the first spectral line in the Balmer series of hydrogen atom is 6561 Å . The wavelength of the second spectral line in the Balmer series in single-ionized helium atom is:

    A
    `1215 Å`
    B
    `1640Å`
    C
    `2430Å`
    D
    `4687Å`

    • Similar Questions

    Explore conceptually related problems

    In the Bohr model of a hydrogen atom, the ratio of the kinetic energy to the total energy of the electron is

    The wavelength of the first spectral line in the Balmer series of hydrogen atom is 6561 Å. The wavelength of the second spectral line in the Balmer series in single-ionized helium atom is:

    Energy of electron in the third orbit of He(+) is E. The energy of electron in-the second orbit of H atom in terms of E is

    In the Bohr model of the hydrogen atom, the lowest orbit corresponds to

    Energy of electron in the first orbit of H atom is x. The energy of electron in the second orbit of He^(+) will be

    Home
    Profile