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If a= (h)/(4 pi^(2)me^(2)) then correct ...

If `a= (h)/(4 pi^(2)me^(2))` then correct expression for calculate of the first orbit of hydrogen atom is

A

`sqrt4pihalpha`

B

`sqrt2pihalpha`

C

`sqrt(4h^(2))pialpha`

D

Both A and C

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • The current in the first orbit of Bohr's hydrogen atom is

    A
    0.01 mA
    B
    1 mA
    C
    2.63 mA
    D
    10 mA

  • The acceleration of electron in the first orbit of hydrogen atom is

    A
    `(4 pi^(2) m)/(h^(3))`
    B
    `(h^(2))/(4 pi^(2)mr)`
    C
    `(h)/(4 pi^(2)m^(2)r^(3))`
    D
    `(m^(2)h^(2))/(4 pi^(2)r^(3))`

  • The ratio of area covered by second orbit to the first orbit in hydrogen atom is :-

    A
    0.043055555555556
    B
    0.052777777777778
    C
    0.33402777777778
    D
    0.66736111111111

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    The diameter of first orbit of hydrogen atom is of the order of

    The angular speed of the electron in the first orbit in a hydrogen atom is

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