Question 2 a.) Calculate the wavelength of a photon that would be produced when an electron jumps from the n = 7 to the n = 1 energy level in a hydrogen atom. [1 mark ] b.) Calculate the wavelength of a photon that would be produced when an electron jumps from the n = 7 to the n = 1 energy level in an infinite square well potential with width L = 0.4 nm. [1 mark] c.) If the wavefunction for a particle in an infinite square well (also known as a 'particle in a box') is: nix E - sin Calculate the expectation value for the n = 2 energy level. [1 mark ]