Astronomy because incoming are absorbed by earth's atmosphere and never reach the ground, telescopes that process this type of radiation are placed in space. a. ultraviolet rays b. x-rays c. radio waves d. visible light rays

The nuclear potential that binds protons and neutrons in the nucleus of an atom is often approximated by a square well. imagine a proton conned in an innite square well of length 105 nm, a typical nuclear diameter. calculate the wavelength and energy associated with the photon that is emitted when the proton undergoes a transition from the rst excited state (n 2) to the ground state (n 1). in what region of the electromagnetic spectrum does this wavelength belong?