Question

Any kind of wave spreads out after passing through a small enough gap in a barrier. this phenomenon is known as _________. any kind of wave spreads out after passing through a small enough gap in a barrier. this phenomenon is known as _________. refraction antireflection diffraction double-slit interference

Answer 1

If a wave passes through a small gap, say a window, it spreads out such that it fills the space after the restricting barrier or the small gap. Such a phenomenon is referred to as diffraction.