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According to Bohr's theory, the electron...

According to Bohr's theory, the electronic energy of H-atom in Bohr's orbit is given by

A

`E_(n)=-(2.18xx10^(-19)xxZ)/(2n^(2))J`

B

`E_(n)=-(2.179xx10^(-18)xxZ^(2))/(n^(2))J`

C

`E_(n)=-(21.79xx10^(-18)xxZ)/(2n^(2))J`

D

`E_(n)=-(21.8xx10^(-21)xxZ^(2))/(n^(2))J`

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • According to Bohr's theory of hydrogen atom

    A
    There is only fixed set of allowed orbitals for the electron
    B
    The allowed orbitals of the electrons are elliptical in shape
    C
    The moment of an electron from one allowed to another allowed orbital is forbidden
    D
    No light is emitted as long as the electron remains in an allowed orbital

  • According to Bohr's theory the angular momentum of an electron in 4th orbit is

    A
    `20 (h)/(pi)`
    B
    `10 (h)/(pi)`
    C
    `2 (h)/(pi)`
    D
    `h/pi`

  • According to Bohr's theory, the angular momentum of an electron in 5^(th) orbit is

    A
    10h/a
    B
    2.5 h/`pi`
    C
    25 h/`pi`
    D
    1.0 h/`pi`

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