A change in the direction of a wave when the wave finds an obstacle or an edge, such as an opening bending of waves around a barrier is called __________________.


a


Question 3 options:


refraction <---



diffraction<-----



crest



trough

A change in the direction of a wave when the wave finds an obstacle or an edge, such as an opening bending of waves around a barrier is called . a Question 3 op class=