Yeah so It should diffract right? So how come here https://en.wikipedia.org/wiki/Diffraction it says that diffraction only occurs when wavelength is around slit size, when clearly it also happens if wavelength is bigger?
I get that diffraction takes place when wavelength is smaller than slit size due to interference. I am confused though, if every point on the slit is taken as a new source when a wave passes through a slit, then surely, if the wave had a longer wavelength than the slit, then the let's say...