Electrons accelerated by a potential difference of 12.75 V pass through a gas of hydrogen atoms, in which all bound electrons are initially in their ground state. Calculate the wavelength of light emitted with the longest possible wavelength in units of meters. HINT: First determine what state the electron has been excited to. Then consider the possible emissions. Finally, consider how does the energy difference between two levels correlate to wavelength. This will help you determine what is the longest wavelength.