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संबंधित प्रश्न
What is the energy of an electron in a hydrogen atom for n = ∞?
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.
Calculate the wavelength for the first three lines in the Paschen series.
(Given RH =1.097 ×107 m-1)
State the postulates of Bohr’s atomic model. Hence show the energy of electrons varies inversely to the square of the principal quantum number.
Which of the following series of transitions in the spectrum of hydrogen atom falls in ultraviolet region?
The magnifying power of a telescope is high, if its objective and eyepiece have respectively ____________.
Bohr model is applied to a particle of mass 'm' and charge 'q' is moving in a plane under the influence of a transverse magnetic field 'B. The energy of the charged particle in the nth level will be (h = Planck's constant).
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?
With the increase in principal quantum number, the energy difference between the two successive energy levels ____________.
For a certain atom when the system moves from 2E level to E, a photon of wavelength `lambda` is emitted. The wavelength of photon produced during its transition from `(4"E")/3` level to E is ____________.
How many moles of electrons are required for reduction of 9 moles of Cr3+ to Cr?
In Bohr's model of hydrogen atom, the period of revolution of the electron in any orbit is proportional to ______.
The binding energy of an electron in nth orbit of the hydrogen atom is given by `"E"_"n" = 13.6/"n"^2 "eV."` The energy required to knock an electron from the second orbit in eV will be ____________.
For an electron, discrete energy levels are characterised by ____________.
The time of revolution of an electron around a nucleus of charge Ze in nth Bohr orbit is directly proportional to ____________.
When an electron in hydrogen atom is excited from its 3rd to 5th stationary orbit, tbe change in angular momentum of electron is (Planck's constant: h = 6.62 x 10-34 Js) ____________.
In Bohr model, speed of electron in nth orbit of hydrogen atom is ______. (b = Planck's constant, n = principal quantum number, ∈0 is the permittivity of free space, e = electronic charge)
Using Bohr's quantization condition, what is the rotational energy in the second orbit for a diatomic molecule. (I = moment of inertia of diatomic molecule, h = Planck's constant)
The relation between magnetic moment of revolving electron 'M' and principle quantum number 'n' is ______.
The momentum of an electron revolving in nth orbit is given by ______.
When an electron in hydrogen atom revolves in stationary orbit, it ______.
Which of the following series of transition of hydrogen spectrum falls in visible region?
The value of Rydberg constant in joule is ______.
The orbital frequency of an electron in the hydrogen atom ______.
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 ______.
