A line in Lyman series of hydrogen atom has a wavelength of `1.03xx10^(-7)m` . What is the initial energy level of the electron ?

The total energy of an electron in the first excited state of the hydrogen atom is -3.4eV. What is the potential energy of the electron in this state ?

The total energy of an electron in the first excited state of hydrogen atom is -3.4eV. What is the kinetic energy of the electron in this state ?

Work function of a metal is 3.0 eV. It is illuminated by a light of wavelength 3xx10^(-7) m. Calculate the maximum energy of the electron.

The velocity of electron in hydrogen atom is 7.29 xx 10^(7) cm/sec The potential energy of that electron is

The ratio of the wave lengths of the first line in the Lyman series of the spectrum of Hydrogen atom and the first line in the Balmer series of the spectrum of He^(+) is

The ratio of the wave lengths of the first line in the Lyman series of the spectrum of Hydrogen atom and the first line in the Balmer series of the spectrum of He^(+) is

The second member of Lyman series in hydrogen spectrum has wavelength 5400 Å . Find the wavelength of first member.

The wavelength of first line of Lyman series in hydrogen atom is 1216 A^(@) . The wavelength of first line of Lyman series of 10 times ionized sodium atom will be

The radius of the first electron orbit of a hydrogen atom is 5.3 xx 10^(-11)m . What is the radius of the second orbit ?