The wavelength corresponding to a transition when electron falls from a certain quantum level to the ground state of an `He^+` ion is 24.31 nm find the ratio of velocity of the electron in the next quantum level to that of velocity of light?

Find the velocity of an electron so that its momentum is equal to that of a photon of wavelength 650 nm.

As an electron makes a transition from an excited state to the ground state of a hydrogen -like atom / ion

Consider the ground state of Cr atom (Z=24). The number of electrons with the azimuthal quantum numbers, l=1 and 2 are respectively-

Calculate the wavelength of radiations in the Lyman series when an electron falls from fourth stationary state of hydrogen atom: (R_H=1.1xx10^7m^-1)

Electron in a hydrogen atom undergoes transition from n_1 to n_2 , where n_1 and n_2 are the principal quantum numbers of two given states. According to Bohr's theory , if the time period of the electron in the initial state be eight times that in the final state , the possible values of n_1 and n_2 will be, respectively

The velocity of an electron in a certain Bohr's orbit of H atom bears the ratio 1:275 to the velocity of light then find the quantum number (n)of orbit

The electronic transition from n=2 to n=1 will produce shortest wavelength in (where n=principal quantum state)-

From the ground state electronic configuration of Sc (z = 21), write down the- possible values of four quantum numbers of 21 th electron of the element.

An electron in a hydrogen atom in its ground in its ground state absorbs 1.5 times as much energy as the minimum required for it escape from the atom what is the velocity of the emitted electron?

A body of mass 1 kg falls to the ground from the roof of a building 20 m high. Find its (ii) velocity when it reaches the ground,