waves - Why do we demand that $\lambda \ll \text{size of slit

I'd appreciate it if anyone could explain to me why do we demand that the wavelength will be much smaller than the distances between the slits in order to see wave diffraction when performing Young's

Does the diffraction of waves through a single slit increase as the width decreases? - Quora

The role of channel height and actuation method on particle

Slowing down x-ray photons in a vibrating recoilless resonant absorber

Optimal social distancing in epidemic control: cost prioritization, adherence and insights into preparedness principles

Picosecond pulsed laser illumination: an ultimate solution for photonic versus thermal processes' contest in SOI photo-activated modulator

Waves in the lower solar atmosphere: the dawn of next-generation solar telescopes

27.5 Single Slit Diffraction – College Physics: OpenStax

Interference and the Two-slit Experiment

Effective Theory of Warped Compactifications and the Implications for KKLT - Lüst - 2022 - Fortschritte der Physik - Wiley Online Library

Physics-Embedded Machine Learning for Electromagnetic Data Imaging

Wave-number space networks in plasma turbulence