An electron revolves in first orbit in H atom, then :

Prove that the velocity of the electron revolving in the first orbit is twice to that of the electron revolving in the second orbit of the hydrogen atom.

The energy of an electron revolving in the first orbit of hydrogen atom is

Prove with help of postulate of Bohr's theory that the velocity of an electron revolving in the first orbit of a hydrogen- like atom or ion is double of that revolving in the second orbit .

Electric force on electron circulates in first orbit of H-atom is F.If the electron is in n^(th) orbit then the force

The de Broglie's wavelength of electron present in first Bohr orbit of 'H' atom is :

The de Broglie's wavelength of electron present in first Bohr orbit of 'H' atom is :

The period of revolution of an electron revolving in n^(th) orbit of H - atom is propportinal to .

Velocity of an electron revolving in a certain orbit of H-atom is (1)/(275) tiems the velocity of light. Find the orbit in which the electron is revolving.

If energy of electron in first orbit of H-atom is - y then what will be its energy in fourth excited orbit ?