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प्रश्न
What is the energy of an electron in a hydrogen atom for n = ∞?
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उत्तर
The energy of an electron in a hydrogen atom for n = ∞ is zero.
संबंधित प्रश्न
Answer in one sentence:
Name the element that shows the simplest emission spectrum.
According to Bohr's second postulate, the angular momentum of the electron is the integral multiple of `h/(2pi)`. The S.I unit of Plank constant h is the same as ______
For the hydrogen atom, the minimum excitation energy ( of n =2) is ______
The speed of electron having de Broglie wavelength of 10 -10 m is ______
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State Bohr's second postulate for the atomic model. Express it in its mathematical form.
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State the postulates of Bohr’s atomic model. Hence show the energy of electrons varies inversely to the square of the principal quantum number.
Obtain an expression for wavenumber, when an electron jumps from a higher energy orbit to a lower energy orbit. Hence show that the shortest wavelength for the Balmar series is 4/RH.
The ratio of the velocity of the electron in the first orbit to that in the second orbit is ____________.
The total energy of an electron in an atom in an orbit is -3.4 eV. Its kinetic and potential energies are, respectively ______.
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 ____________.
According to Bohr's theory, the expression for the kinetic and potential energy of an electron revolving in an orbit is given respectively by ______.
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(R = Rydberg's constant)
An electron of mass 'm' is rotating in first Bohr orbit of radius 'r' in hydrogen atom. The orbital acceleration of the electron in first orbit (h = Planck's constant).
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?
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What is the mathematical formula for the third postulate of Bohr's atomic model?
When an electron in hydrogen atom revolves in stationary orbit, it ______.
The value of Rydberg constant in joule is ______.
Ultraviolet light of wavelength 300 nm and intensity 1.0 Wm−2 falls on the surface of a photosensitive material. If one percent of the incident photons produce photoelectrons, then the number of photoelectrons emitted from an area of 1.0 cm2 of the surface is nearly ______.
What is the origin of spectral lines? Obtain an expression for the wave number of a line in hydrogen spectrum.
Show that the angular speed of an electron in the nth Bohr orbit is w = `(πme^4)/(2ε_0^2h^3n^3)` and the corresponding frequency of the revolution of the electron is f = `(me^4)/(4ε_0^2h^3n^3)`.
Compute the shortest and the longest wavelength in the Lyman series of hydrogen atom.
