Calculate the mass of a photon of sodium having wavelength `5894 overset(@)A` and velocity `3xx10^8 ms^-1`

Calculate the mass of a photon of sodium light having wavelength 5894 angstrom and velocity 3 (10*8)ms-1.

Calculate the momentum of electrons , if their wavelength is 1 overset @A . Given that Plank.s constant , h= 6.626 xx 10^(-34) Js,mass of electron, m=9.1 xx10^(-31) kg.

Calculate the wavelength of an electron moving with a velocity of 2.05 ms-1

Calculate the momentum of electrons if their wavelength is 2 overset @A . Given that Plank.s constant, h = 6.629 xx 10^9-34) Js, mass of electrons, m=9.1 xx 10^(31) kg.

Calculate the photon energy in electron- volt for radiation of wavelength 1 metre.

Calculate momentum of electron, if their wavelength is 1overset @ A . Given, Planck's constant h=6.625 xx 10^(-34) Js , mass of electron m=9.1 xx 10^(-31) kg.

Calculate the momentum of electrons, if their wavlength is 3 overset @A . Given that Plank.s constant , h=6.626 xx 10^(-34) Js, mass of electron, m=9.1xx10^(-31) kg.

Calculate momentum of electron, if their wavelength is 2 overset @ A . Given, Planck's constant h=6.625 xx 10^(-34) Js , mass of electron m=9.1 xx 10^(-31) kg.