Find the ratio of the diameters of 1st Bohr orbit to 3rd Bohr orbit.

Find the ratio of the diameters of 2nd Bohr orbit to 4th Bohr orbit.

Find the ratio of diameter of electron in 1^(st) Bohr orbit to that in 4^(th) Bohr orbit

What is the energy in joules, required to shift the electron of the hydrogen atom from the first Bohr orbit to the 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 -2.18 xx 10^-11 ergs.

Calculate the energy radiated by the electron in the hydrogen atom during its transition from the fourth Bohr orbit to the first Bohr orbit. Hence determine frequency, wavelength and wave number of corresponding spectral line. Given: E_1= -13.6 eV, h = 6.6 xx 10^-34 J-s, c = 3 xx10^8 m//s . . .

Define Bohr's orbit or stationary orbit.

The ratio of radii of the first three Bohr orbits is

Energy of third orbit of BOhr's atom is

The angular momentum of the electron in the second Bohr orbit is 2.112 xx 10^-34 kg m^2//s . Find the angular momentum of the electron in the third Bohr orbit.

Find the energy of the electron in eV in the third Bohr orbit of the hydrogen atom. ( Rydberg's constant R = 1.097 xx10^7 m^-1 Planck's constant (h) = 6.63xx10^-34 J.S , velocity of light in air (c) = 3xx 10^8 m//s)

The period of revolution of electron in 3^(rd) Bohr orbit in Hydrogen atom is 4.132xx10^(-15) second.Hence find the period of revolution of electron in the fourth Bohr orbit.