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प्रश्न
According to Bohr, 'Angular momentum of an orbiting electron is quantized'. What is meant by this statement?
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उत्तर
This means that electron revolves around the nucleus in fixed i.e., quantized orbits and do not radiate energy i.e., angular momentum in these orbits is an integral multiple of `h/(2pi)`, where h is Planck's constant.
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संबंधित प्रश्न
How many electrons in an atom may have the following quantum numbers?
n = 3, l = 0
if `E_p` and `E_k` represent potential energy and kinetic energy respectively, of an orbital electron, then, according to B9hr's theory:
a)`E_k = -E_p"/"2`
b) `E_k = -E_p`
c) `E_k = -2E_p`
d) `E_k = 2E_p`
When a photon stimulates the emission of another photon, the two photons have
(a) same energy
(b) same direction
(c) same phase
(d) same wavelength
The inverse square law in electrostatics is |F| = `e^2/((4πε_0).r^2)` for the force between an electron and a proton. The `(1/r)` dependence of |F| can be understood in quantum theory as being due to the fact that the ‘particle’ of light (photon) is massless. If photons had a mass mp, force would be modified to |F| = `e^2/((4πε_0)r^2) [1/r^2 + λ/r]`, exp (– λr) where λ = mpc/h and h = `h/(2π)`. Estimate the change in the ground state energy of a H-atom if mp were 10-6 times the mass of an electron.
The radius of the innermost electron orbit of a hydrogen atom is 5.3 × 10–11m. The radius of the n = 3 orbit is ______.
In Bohr's atomic model of hydrogen, let K. P and E are the kinetic energy, potential energy and total energy of the electron respectively. Choose the correct option when the electron undergoes transitions to a higher level:
According to Bohr atom model, in which of the following transitions will the frequency be maximum?
If 13.6 eV energy is required to ionize the hydrogen atom, then the energy required to remove an electron from n = 2 is ______.
The total energy of an electron in the nth orbit of the hydrogen atom is proportional to ______.
The radius of the nth orbit in the Bohr model of hydrogen is proportional to ______.
