(D) The main postulate of Bohr's model is that the electron can move only in those circular orbits where its angular momentum is an integral multiple

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Angular momentum of electron is an integral multiple of $\frac{h}{2\pi}$

(D) The main postulate of Bohr's model is that the electron can move only in those circular orbits where its angular momentum is an integral multiple of $\frac{h}{2\pi}$.This is expressed as $mvr = n \frac{h}{2\pi}$,where $n = 1, 2, 3, ...$ (an integer).

Class 11 Chemistry Structure of Atom Atomic models and Planck's quantum theory

Medium

Which one of the following is considered as the main postulate of Bohr’s model of atom?

A
Protons are present in the nucleus
B
Electrons are revolving around the nucleus
C
Centrifugal force produced due to the revolving electrons balances the force of attraction between the electron and the protons
D
Angular momentum of electron is an integral multiple of $\frac{h}{2\pi}$

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Class 11

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Structure of Atom

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Atomic models and Planck's quantum theory

The energies of an electron in the first orbit of $He^{+}$ and in the third orbit of $Li^{2+}$ in $J$ are respectively:

DifficultAP EAMCET 2019

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If the radius and energy of the second Bohr orbit of a hydrogen atom are $r_2$ and $E_2$,respectively,then the radius and energy of the third Bohr orbit will be,respectively:

MediumTS EAMCET 2022

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$A$ bulb emits light of wavelength $4500 \ \mathring{A}$. The bulb is rated at $150 \ \text{W}$ and $8\%$ of the energy is emitted as light. How many photons are emitted by the bulb per second?

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When an electron jumps from $n = 5$ to $n = 2$ with all possible transitions,which of the following statements is correct?

Medium

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When a hydrogen atom in an excited state undergoes electronic transitions to the ground state,$5$ spectral lines are observed in the ultraviolet region. How many spectral lines will be observed in the infrared region due to transitions from the same excited state?

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Which one of the following is considered as the main postulate of Bohr’s model of atom?

Similar Questions

The energies of an electron in the first orbit of $He^{+}$ and in the third orbit of $Li^{2+}$ in $J$ are respectively:

If the radius and energy of the second Bohr orbit of a hydrogen atom are $r_2$ and $E_2$,respectively,then the radius and energy of the third Bohr orbit will be,respectively:

$A$ bulb emits light of wavelength $4500 \ \mathring{A}$. The bulb is rated at $150 \ \text{W}$ and $8\%$ of the energy is emitted as light. How many photons are emitted by the bulb per second?

When an electron jumps from $n = 5$ to $n = 2$ with all possible transitions,which of the following statements is correct?

When a hydrogen atom in an excited state undergoes electronic transitions to the ground state,$5$ spectral lines are observed in the ultraviolet region. How many spectral lines will be observed in the infrared region due to transitions from the same excited state?

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