Advertisements
Advertisements
प्रश्न
The speed of electron having de Broglie wavelength of 10 -10 m is ______
(me = 9.1 × 10-31 kg, h = 6.63 × 10-34 J-s)
विकल्प
7.28 × 106 m/s
4 × 106 m/s
8 × 105 m/s
5.25 × 105 m/s
Advertisements
उत्तर
The speed of electron having de Broglie wavelength of 10 -10 m is 7.28 × 106 m/s.
संबंधित प्रश्न
Derive the expression for the energy of an electron in the atom.
The radii of Bohr orbit are directly proportional to ______
What is the energy of an electron in a hydrogen atom for n = ∞?
Derive an expression for the radius of the nth Bohr orbit for the hydrogen atom.
How the linear velocity 'v' of an electron in the Bohr orbit is related to its quantum number 'n'?
The ratio of speed of an electron in the ground state in the Bohr's first orbit of hydrogen atom to velocity of light (c) is ____________.
(h = Planck's constant, ε0 = permittivity of free space, e = charge on electron)
Using Bohr's model, the orbital period of electron in hydrogen atom in nth orbit is (ε0 = permittivity of free space, h = Planck's constant, m = mass of electron and e = electronic charge)
The wavelength of the first line in Balmer series in the hydrogen spectrum is 'λ'. What is the wavelength of the second line in the same series?
When the electron in hydrogen atom jumps from fourth Bohr orbit to second Bohr orbit, one gets the ______.
If the ionisation potential of helium atom is 24.6 volt, the energy required to ionise it will be ____________.
The total energy of an electron in an atom in an orbit is -3.4 eV. Its kinetic and potential energies are, respectively ______.
In Bohr's model of hydrogen atom, the period of revolution of the electron in any orbit is proportional to ______.
When hydrogen atom is in its first excited level, its radius is how many time its ground state radius?
In hydrogen atom, the de Broglie wavelength of an electron in the first Bohr's orbit is ____________.
[Given that Bohr radius, a0 = 52.9 pm]
Which of the following models was successful in explaining the observed hydrogen spectrum?
In hydrogen spectnun, the wavelengths of light emited in a series of spectral lines is given by the equation `1/lambda = "R"(1/3^2 - 1/"n"^2)`, where n = 4, 5, 6 .... And 'R' is Rydberg's constant.
Identify the series and wavelenth region.
When an electron in hydrogen atom jumps from third excited state to the ground state, the de-Broglie wavelength associated with the electron becomes ____________.
Electron in Hydrogen atom first jumps from third excited state to second excited state and then from second excited state to first excited state. The ratio of the wavelengths λ1 : λ2 emitted in the two cases respectively is ______.
The radius of orbit of an electron in hydrogen atom in its ground state is 5.3 x 10-11 m After collision with an electron, it is found to have a radius of 13.25 x 10-10 m. The principal quantum number n of the final state of the atom is ______.
If Vn and Vp are orbital velocities in nth and pth orbit respectively, then the ratio Vp: Vn is ______.
The speed of an electron in ground state energy level is 2.6 × 106 ms-1, then its speed in third excited state will be ______.
In Bohr’s atomic model, speed and time period of revolution of an electron in n = 3 level are respectively.
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.
