The binding in an HCl molecule is most often described with the LCAO-MO model. Sometimes it may be of interest to apply a simpler model, "particle in a box".

According to this model, calculate the wavelength of the longest wave band in the electron spectrum of the molecule if the "box length" is assumed to be 2.6 .

Group of answer options

a) 75

b) 75 nm

c) 75 pm

d) 75 .m

Choose one of these options a-d