Help with both Part A and Part B please:

Part A: Calculate the zero-point energy of a hydrogen molecule in a one-dimensional box of length 1.54 cm. Express your answer with the appropriate units.

Part B: Determine the wavelength of the photon emitted when an electron in a hydrogen atom undergoes a transition from the n = 3 to the n = 2 energy level. Express your answer with the appropriate units.

a) Part A: E_ZPE =2.36×10⁻²² J, Part B: λ=656nm
b) Part A: E_ZPE =4.68×10⁻²² J, Part B: λ=486nm
c) Part A: E_ZPE =6.78×10⁻²² J, Part B: λ=434nm
d) Part A: E_ZPE =8.91×10⁻²² J, Part B: λ=656nm