Does a wave reflected from the top surface of the chitin layer $($wave $1$ or wave $3)$ undergo a change

in phase? Why or why not?

Does a wave reflected from the bottom surface of the chitin layer $($wave $2)$ undergo a change in

phase? Why or why not?

If the wavelength of the incident light in air is and the index of refraction of the chitin layer is n$,$

what is the wavelength of the light inside the chitin layer?

What is the di$$erence in length between the path traveled by wave $1$ and the path traveled by

wave $2,$ in terms of dc$?$

Use the Build$-$Your$-$Own$-$Equation approach to calculate the wavelength$($s$)$ from the visible part of

the spectrum from which wave $1$ and wave $2$ interfere constructively.

Answer questions A$4$ and A$5$ about constructive interference between waves $1$ and $3.$

Answer questions A$4$ and A$5$ about constructive interference between waves $2$ and $3.$

Are the values you calculated for the wavelengths consistent with the perceived color of the

Morpho wing?