Home
Class 12
PHYSICS
Electron of a hydrogen atom revolves in ...

Electron of a hydrogen atom revolves in 3rd orbit.
Find the angular momentum of the electron.
`(h=6.6xx10^(-27) erg*s)`

Text Solution

Verified by Experts

Principal quantum number of 3rd Bohr orbit, n=3 . So according to Bohr's postulate, angular momentum of eletron in the orbit,
`L_3=3xxh/(2 pi) =(3xx6.6xx10^(-27))/(2xx (pi))=3.15xx10^(-27) erg*s`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ATOM

    CHHAYA PUBLICATION|Exercise NCERT TEXTBOOK QUESTIONS WITH ANSWER HINT|6 Videos

  • ATOM

    CHHAYA PUBLICATION|Exercise NCERT EXEMPLAR QUESTIONS WITH ANSWER HINT (Multiple Options Correct)|10 Videos

  • ATOM

    CHHAYA PUBLICATION|Exercise Section Related Questions|18 Videos

  • ALTERNATING CURRENT

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|33 Videos

  • ATOMIC NUCLEUS

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|14 Videos

Similar Questions

Explore conceptually related problems

Write the expresion for orbital angular momentum of a revolving electron.

The oribital angular momentum of an electron is 2s orbital is

Knowledge Check

  • The orbital angular momentum of a 2p-electron is

    A
    `sqrt(3)h`
    B
    `sqrt(6)h`
    C
    zero
    D
    `sqrt(2)h/(2pi)`

  • The orbital angular momentum of p-electron is given by as

    A
    `h/(sqrt2pi)`
    B
    `sqrt3 (h/(2pi))`
    C
    `sqrt(3/2) h/pi`
    D
    `sqrt6(h/(2pi))`

  • What is the orbital angular momentum of an electron in 'f' orbital ?

    A
    `1.5h//pi`
    B
    `sqrt6h//pi`
    C
    `sqrt3h//pi`
    D
    `sqrt3h//2pi`

    • Similar Questions

    Explore conceptually related problems

    In an excited state, the energy of the electron of a hydrogen atom is -0.54 eV. Determine the angular momentum of the electron in this state from Bohr's theory .

    In a hydrogen atom , an electron of charge e revolves in an orbit of radius r with speed v . Find the resulting magnetic moment of the electron .

    The energy of an excited hydrogen atom is -1.51 eV. Determine the angular momentum of the electron according to Bohr's hypothesis.

    Statement I : The magnetic moment of an electron rotating in an atom is proportional to its angular momentum . Statement II : The electrons in an atom can rotate only if those orbits for which the angular momentum of the electron is an integral multiple of (h)/(2pi) (h - Planck 's constant ).

    The angular momentum of electrons in d-orbital is equal to

    Home
    Profile