Reduced mass in atoms

Through this problem we understand how radius, energy of orbit and wavelength of emitted light changes when we consider the effect of nuclear mass. This idea led to the discovery of deuterium
and eventually Noble prize to Herald Uray in 1934!

[@GurpreetKaur-rw2ts]

Very nice explanation

[@amira_23_14]

Sir
How we can determine the reduced mass of atom by effect of velocity?!

[@joyofphysicswithpankaj]

Reduced mass formula is mentioned in the video.