An electron in the ground state jumps to 4th state by absorption of energy `-13.6eV`.Determine a wavelength and frequency of the photon, `(e = 1.6 xx 10^-19 C, h = 6.63xx10^-34 J-s, c =3xx 10^8 m//s)`

If wavelength of photon is 2.2 xx 10^-11m , h = 6.6 xx 10^-34 Js , then momentum of photon is_____.

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 . . .

Find the value of Bohr magneton, given that e =1.6xx10^(-19)C, H = 6.63xx10(-34) , pi= 3.142 and m_e=9.1xx10^-28g

Show that (1 kWh = 3.6 xx 10^6J ).

Calculate the gyromagnetic ratio of electron (Given e = 1.6xx10 T^-19 C, m_e = 9.1xx10^-31 kg)

Find the period of revolution of electron in the second orbit in the hydrogen atom and hence find period of revolution of the electron in the third orbit of hydrogen atom. epsilon_0 = 8.85 xx 10^-12 C^2// Nm^2, h=6.63 xx^-34 J-s, m=9.xx10^-31 kg, e =1.6 xx 10^-19 C .

Energy of the electron in the ground state of hydrogen atom is (-13.6eV) . Calculate the energy in 3^(rd) and 4^(th) orbit.

Calculate the energy of a photon of frequency 6.2 xx.10^14 Hz .

Energy of an electron in ground state of hydrogen atom is -13.6eV . Calculate its K.E. and P.E. in the same state.

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)