Describe the Bohr model of the hydrogen atom with the aid of a
sketch and an equation for the allowed state energies for which the
ground state energy is -13.61 eV. Define all variables used. [2
marks] (b) De Broglie’s equation defines a wavelength for a
particle, yet in the view of quantum mechanics, matter is in the
form of particles and not waves. Explain how this apparent paradox
is resolved by carefully defining the variables in de Broglie’s
equation....