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संबंधित प्रश्न
The radii of Bohr orbit are directly proportional to ______
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)
The linear momentum of the particle is 6.63 kg m/s. Calculate the de Broglie wavelength.
Starting with 𝑟 = `(ε_0h^2n^2)/(pimZe^2),` Show that the speed of an electron in nth orbit varies inversely to principal quantum number.
State Bohr's second postulate for the atomic model. Express it in its mathematical form.
State the postulates of Bohr’s atomic model. Hence show the energy of electrons varies inversely to the square of the principal quantum number.
The magnifying power of a telescope is high, if its objective and eyepiece have respectively ____________.
If the ionisation potential of helium atom is 24.6 volt, the energy required to ionise it will be ____________.
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?
For an electron, discrete energy levels are characterised by ____________.
If the speed of an electron of hydrogen atom in the ground state is 2.2 x 106 m/s, then its speed in the third excited state will be ______.
In hydrogen emission spectrum, for any series, the principal quantum number is n. Corresponding maximum wavelength λ is ______.
(R = Rydberg's constant)
Ratio of centripetal acceleration for an electron revolving in 3rd orbit to 5th orbit of hydrogen atom is ______.
The minimum energy required to excite a hydrogen atom from its ground state is ____________.
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?
In any Bohr orbit of hydrogen atom, the ratio of K.E to P.E of revolving electron at a distance 'r' from the nucleus is ______.
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 ______.
The momentum of an electron revolving in nth orbit is given by ______.
An electron of mass m and charge e initially at rest gets accelerated by a constant electric field E. The rate of change of de-Broglie wavelength of this electron at time t ignoring relativistic effects is ______.
When an electron in hydrogen atom revolves in stationary orbit, it ______.
In Bohr’s atomic model, speed and time period of revolution of an electron in n = 3 level are respectively.
Calculate the energy of the electron in the ground state of the hydrogen atom. Express it in joule and in eV.
Find the momentum of the electron having de Broglie wavelength of 0.5 A.
