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The longest wavelength limit of Lyman se...

The longest wavelength limit of Lyman series is

A

`4/(3 xx 109670)` cm

B

`3/(4 xx 109670)` cm

C

`(4 xx 109670)/3` cm

D

`(3 xx 109670)/4` cm

Text Solution

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The correct Answer is:
A
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Assuming Rydberg constant (R_(H)) to be 109670 c m^(- 1) , the longest wavelength line in the Lyman series of the hydrogen spectrum is

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Knowledge Check

  • The ratio of wavelength of a photon one present in limiting line of Balmer series and another with the longest wavelength line in the Lyman series in H atom is

    A
    `3 : 1`
    B
    `2 : 1`
    C
    `4 : 3`
    D
    `2 : 3`

  • The wavelength of Lyman series is

    A
    `(4)/(3 xx 10967) cm`
    B
    `(3)/(4 xx 10967) cm`1
    C
    `(4 xx 10967)/(3) cm`
    D
    `(3)/(4) xx 109767 cm`

  • The energy of electron in the nth orbit of hydrogen atom is expressed as E_(n) = (-13.6)/(n^(2))eV . The shortest and longest wavelength of Lyman series will be

    A
    `910 Å, 1213 Å`
    B
    `5463 Å, 7858 Å`
    C
    `1315 Å, 1530 Å`
    D
    None of these

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