Calculate the value of Bohr Magneton (Given: Charge on electron = `1.6xx10^-19 C, h (Planck's) constant = `6.63xx10^-34Js, mass of electron m_e = 9.1xx10^-31 kg)`

The radius of the second Bohr orbit for hydrogen atom is________. [Plank's constant, h = 6.6262 xx 10^-34 Js mass of electron = 9.109 xx 10^-31 kg charge on electron, e = 1.602 xx 10^-19 C]

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

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

Calculate the de Broglie wavelength of an electron moving with (1/3)rd of the speed of light in vacuum.(Neglect relativistic effect) (Planck's constant : h = 6.63 xx 10^-34 js , Mass of electron : m = 9.11 xx 10^-28 g )

The threshold wavelength for silver is 3800overset@ A . Calculate maximum kinetic energy in eV of photoelectrons emitted when ultraviolet light of wavelength 2600overset@ A falls on it. Also calculate stopping potential ( 1 eV = 1.6 xx 10^-19 J , Planck's constant = h = 6.63 xx 10^-34 Js , speed of light in vacuum = 3 xx 10^8 m//s ).

Find the wave number of a photon having an energy of 2.072.eV. Given : Charge on electron = 1.6 xx 10^-19 C , Velocity-of light in air = 3 xx 10^8 m//s ,Planck's constant = 6.63 xx 10^-34 J-s .

The charge on the electron is 1.6 xx 10^(-19) C . The order of magnitude is

An electron in an atom revolving round the nucleus in a circular orbit of radius 5.3 xx 10^-11 m with a speed of 2xx10^6 frac(cm)(s) . Find the resultant orbital magnetic moment and angularmomentum of electron. (Charge on electron e =1.6xx10^-19C , mass of electron m = 9.1 xx 10-31 kg )

Find de-Broglie wavelength of neutron at 127^@ C . (Given Boltzman constant = K =1.38 xx 10^-23 J molecule^-1 K^-1, h = 6.63 xx 10^-34 Js, Mass of neutron = 1.66 xx 10^-27 kg)