If the energy of first Bohr's orbit is - 13.58 eV of a hydrogen atom calculate the energy of third Bohr's orbit of that atom.

It the energy of 1st Bohr orbit be 13.6eV of a hydrogen atom, then calculate the energy for 2nd orbit in Joule.

If the radius of first Bohr orbits of Hydrogen atom is 0.5overset@A , Find the radius of the fourth Bohr Orbit of the atom.

Show that the energy of first excited state of He^(+) atom is equal to the energy of electron in the first orbit of hydrogen atom.

In Bohr's model of hydrogen atom ,

What is the ratio of diameter of first Bohr's orbit in He^+ and H atom?

If the radius of first Bohr orbit of H is 0.53overset@A , then what will be its Radius of 10th Bohr orbit?—

Number of waves on third Bohr's orbit of hydrogen will be

The ratio, of the radii of the first three Bohr orbit in H atom is

What is the energy in joules required to shift the electron of a hydrogen atom from first Bohr orbit to fifth Bohr orbit and what is the wavelength of the light emitted when the electron returns to the ground state?the ground state electron energy is -2.18x10^(-11) erg.

State the postulates of Bohr's model of hydrogen atom .