Question

question 16 of 33
which of the following best describes diffraction of a wave?
a. as a wave reaches the interface between two different media, its direction of motion changes, and it remains in the first medium.
b. as a wave moves from one medium to another, the energy of the wave is converted to other forms of energy.
c. as a wave moves from one medium into another in which its speed is different, the wave changes direction.
d. as a wave moves around a corner or through an opening, its direction of motion changes.

Explanation:

Diffraction is the bending of waves around obstacles or through openings. Option D correctly describes this phenomenon. Option A describes reflection, Option B is about energy conversion which is not diffraction, and Option C describes refraction.

Answer:

D. As a wave moves around a corner or through an opening, its direction of motion changes.