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When electron jumps from n=4 level to n=...

When electron jumps from n=4 level to n=1 level,the angular momentum of electron changes by

A

`h/(2pi)`

B

`(2h)/(2pi)`

C

`(3h)/(2pi)`

D

`(4h)/(2pi)`

Text Solution

Verified by Experts

The correct Answer is:
C
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The angular momentum of an electron in a particular orbit of Li^(2+) ion is 5.2728xx10^(-34) kg m^(2)//"sec" . Calculate the frequency of the spectral line when electron falls from this level to the level where angular momentum of electron will be 3.1636xx10^(-34)kgm^(2)//"sec" .

The angular momentum of an electron in a particular orbit of Li^(2+) ion is 5.2728 xx 10^(-34) kg m^(2) // sec. Calculate the frequency of the spectral line when electron falls from this level to the level where angular momentum of electron will be 3.1636xx 10^(-34) kg - m^(2)// sec.

Knowledge Check

  • When electron jumps from n = 4 to n = 1 orbit, we get

    A
    second line of Lyman series
    B
    second line of Balmer series
    C
    second line of Paschen series
    D
    an absorption line of Balmer series

  • When an electron jumps from a level n = 4 to n = 1 , the momentum of the recoiled hydrogen atom will be

    A
    `6.5 xx 10^(-27) kg m s^(-1)`
    B
    `22.75 xx 10^(-19) kg m s^(-1)`
    C
    `13.6 xx 10^(-27) kg m s^(-1)`
    D
    zero

  • When an electron jumps from a level n=4 to n=1 , momentum of the recoiled hydrogen atom will be

    A
    `6.8xx10^(-27)"kg ms"^(-1)`
    B
    `12.75xx10^(-19)"kg ms"^(-1)`
    C
    `13.6xx10^(-19)"kg ms"^(-1)`
    D
    zero

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