Question

1) An electron (me = 9.11 × 10–31 kg) and a bullet (m = 0.020 0 kg) each have a velocity of magnitude of 500 m/s, accurate to within 0.010 0%. Within what limits could we determine the position of the objects along the direction of the velocity? What is your observation?
2)We have the energy level for hydrogen atom: .En=-13.6eV/n^2
a/ For high principle quantum number (n) for hydrogen atom show that the spacing between the neighboring energy levels is proportional to .1/n^3
b/ In which transition of hydrogen atom is the wavelength of 486.1 nm produced? To which series does it belong?