Question

A change in direction in a wave when it passes through an opening is called

Answer 1

A change in direction in a wave when it passes through an opening is called diffraction.

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Answer 2

Refraction

Step-by-step explanation:

the change in direction of waves that occurs when waves travel from one medium to another. ... Diffraction is the bending of waves around obstacles and openings. The amount of diffraction increases with increasing wavelength