Which term denotes the reflection of progressive waves by a vertical barrier?

Which term denotes the reflection of progressive waves by a vertical barrier?

• A. Wave Diffraction
• B. Wave Crest
• C. Wave
• D. Wave Reflection

Answer: (D)

When a progressive wave meets a rigid vertical barrier, the energy cannot pass through the barrier, so part of the wave is sent back into the medium. This rebound creates a reflected wave that travels in the opposite direction to the incoming wave. For smooth barriers, the angle at which the wave approaches the barrier (angle of incidence) is equal to the angle at which it leaves (angle of reflection), illustrating the predictable nature of this interaction. This process is distinct from diffraction, which involves bending and spreading around edges; it’s also not about the crest of a wave or the wave as a whole. So the phenomenon described is wave reflection.

When a progressive wave meets a rigid vertical barrier, the energy cannot pass through the barrier, so part of the wave is sent back into the medium. This rebound creates a reflected wave that travels in the opposite direction to the incoming wave. For smooth barriers, the angle at which the wave approaches the barrier (angle of incidence) is equal to the angle at which it leaves (angle of reflection), illustrating the predictable nature of this interaction. This process is distinct from diffraction, which involves bending and spreading around edges; it’s also not about the crest of a wave or the wave as a whole. So the phenomenon described is wave reflection.