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प्रश्न
State any two limitations of Bohr’s model for the hydrogen atoms.
State any one limitation of Bohr’s theory of hydrogen atom.
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उत्तर
- Bohr’s model is applicable only to the hydrogen atom and fails to explain the spectra of multi-electron atoms.
- It cannot explain the fine structure of spectral lines or effects such as the Zeeman and Stark effects.
Notes
Students should refer to the answer according to the question.
संबंधित प्रश्न
Derive the expression for the energy of an electron in the atom.
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The linear momentum of the particle is 6.63 kg m/s. Calculate the de Broglie wavelength.
State Bohr's second postulate for the atomic model. Express it in its mathematical form.
Using de Broglie’s hypothesis, obtain the mathematical form of Bohr’s second postulate.
Calculate the wavelength for the first three lines in the Paschen series.
(Given RH =1.097 ×107 m-1)
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For which one of the following, Bohr model is not valid?
In Bohr's model of hydrogen atom, the period of revolution of the electron in any orbit is proportional to ______.
In the nth orbit, the energy of an electron `"E"_"n"= -13.6/"n"^2"eV"` for hydrogen atom. The energy required to take the electron from first orbit to second orbit will be ____________.
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In Bohr's model of hydrogen atom, which of the following pairs of quantities are quantized?
If a charge on the body is 1 nC, then how many electrons are present on the body?
If n is principal quantum number and r is the radius of the orbit in which electron revolves around nucleus, then its kinetic energy is ____________.
In hydrogen atom, during the transition of electron from nth outer orbit to first Bohr orbit, a photon of wavelength `lambda` is emitted. The value of 'n' is [R =Rydberg's constant] ____________.
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The relation between magnetic moment of revolving electron 'M' and principle quantum number 'n' is ______.
The momentum of an electron revolving in nth orbit is given by ______.
Let Ee and Ep represent the kinetic energy of electron and photon, respectively. If the de-Broglie wavelength λp of a photon is twice the de-Broglie wavelength λe of an electron, then `E_p/E_e` is ______.
(speed of electron = `c/100`, c = velocity of light)
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