Find the ratio of equivalents current due to electron motion in first and second of hydrogen atom.

Find the equivalent current due to motion of electron in first orbit of H-atom.

What is the ratio of the speeds of an electron in the first and second orbits of a hydrogen atom?

Electric current due to electrons motion in n th orbit (l_n) of hydrogen atom is proportional to

What is the electron velocity in the second orbit of hydrogen atom ?

The velocity of electron in second shell of hydrogen atom is

Find the wavelength of electron orbiting in the first excited state of hydrogen atom.

Find the ratio of energies of photons produced due to transition of electron of hydrogen atom form its (i) second permitted energy level to the first level (ii) highest permitted energy level to the first permitted level.

Find the ratio of energies of photons produced due to transition of electron of hydrogen atom form its (i) second permitted energy level to the first level (ii) highest permitted energy level to the first permitted level.

Show that the speed of electron in the second orbit of He^(+) atom is equal to the speed of electron in the first orbit of hydrogen atom.