An electron in a mercury atom changes from energy level b to a higher energy level when the
atom absorbs a single photon with an energy of 3.06 electronvolts.
determine the letter that identifies the energy level to which the electron jumped when the mercury
atom absorbed the photon.

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up