physics question?

Question

In our everyday environment, diffraction is much more evident for sound waves than for light waves. Why is this so?

Answer 1

Diffraction happens when something tries to squeeze through an opening smaller (approximately) than its wavelength. Sound's wavelength is pretty big.

Light's wavelength, however, is tiny. Something small enough to diffract light is also usually too small to be noticed. You surely know of some special case examples in which there are lots of slots aligned in such a way that the effect is big enough to notice, such as diffraction gratings, but they are indeed special cases.