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Electrons in a certain energy level n=n(...

Electrons in a certain energy level `n=n_(1)` can emit 3 spectral lines. When they are in another energy level, `n=n_(2)`, they can emit 6 spectral lines. The orbital speed of the electrons in the two orbits are in the ratio

A

`4:3`

B

`3:4`

C

`2:1`

D

`1:2`

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • A spectral line is emitted when an electron

    A
    rotates in the circular orbit
    B
    rotates in the elliptical orbit
    C
    jumps from lower orbit to higher orbit
    D
    jumps from higher orbit to lower orbit

  • Atomic hydrogen is excited to the nth energy level . The maximum number of spectral lines which it can emit while returning to ground state,is:

    A
    `1/2n(n-1)`
    B
    `1/2n(n+1)`
    C
    `n(n+1)`
    D
    `n(n+1)`

  • The number of spectral lines orbitals in Bohr spectrum of hydrogen atom when an electron is excited from ground level is 5th orbit is

    A
    10
    B
    5
    C
    8
    D
    15

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