Home
Class 12
PHYSICS
In a hydrogen like atom electron makes t...

In a hydrogen like atom electron makes transition from an energy level with quantum number n to another with quantum number (n - 1). If `n gt gt 1,` the frequency of radiation emitted is proportional to :

A

`1/n^(2)`

B

`1/(n^(3//2))`

C

`1/n^(3)`

D

`1/n`

Text Solution

Verified by Experts

The correct Answer is:
C
`triangleE=hv`
`v=(triangleE)/(h) k[(1)/((n-1)^(2))-(1)/(n^(2))] =(k2n)/(n^(2)(n-1)^(2))`
`=(2k)/(n^(3)) alpha 1/n^(3)`
Promotional Banner

Topper's Solved these Questions

  • ATOMS, MOLECULES AND NUCLEI

    MODERN PUBLICATION|Exercise Recent Competitive Questions|40 Videos

  • ATOMS, MOLECULES AND NUCLEI

    MODERN PUBLICATION|Exercise MCQ (Level -II)|77 Videos

  • 15 MAGNETIC EFFECTS OF CURRENTS

    MODERN PUBLICATION|Exercise Recent Competitive Questions|31 Videos

  • CURRENT ELECTRICITY

    MODERN PUBLICATION|Exercise RECENT COMPETITIVE QUESTIONS|32 Videos

Similar Questions

Explore conceptually related problems

An electron has spin quantum number +1//2 and a magnetic quantum number -1. It cannot be present in

Force acting on an electron in Bohr orbit with quantum number n is proportional to

For azimuthal quantum number 1 = 2, the maximum number of electrons will be :

The ground state energy of hydrogen atom is - 13.6 eV. If an electron makes a transition from an energy level - 0.85 eV to -3.4 eV, calculate the wavelength of the spectral line emitted. To which series of hydrogen spectrum does this wavelength belong?

An electron makes a transition from orbit n = 4 to the orbit n = 2 of a hydrogen atom . The wave number of the emitted radiations (R = Rydberg's constant) will be

Using Bohr.s postulates, derive the expression for the frequency of radiation emitted when electron in hydrogen atom undergoes transition from higher energy state (quantum number n_1 ) to the lower state ( n_f ). When electron in hydrogen atom jumps from energy state n_1 = 4 to n_f = 3, 2, 1, indentify the spectral series to which the emission lines belong.

How does the energy difference between the consecutive energy level vary as the quantum number n increases ?