I3

felty function for Finite Potential Well. 8) The wavelength of light emitted by H-atom in the laboratory is 350 nm. However, the wavelength of this light coming from a distant galaxy is 650 nm. Find the speed at which the galaxy is receding from Earth. A) 0.73C B) 0.81c C) 0.55c D) 0.35c E) 1.25c