Imagine that sound waves with a certain definite wavelength flow through a partially open sliding door. If the door is closed somewhat further (but not shut entirely), the angle through which the sound waves are diffracted
A) Decreases.
B) Increases.
C) Remains the same.
D) Depends on quantities not specified (explain).

Question

Quizplus · Accepted Answer

The diffraction of sound waves increases as the size of the opening decreases relative to the wavelength of the sound. When the door is closed further, making the opening smaller, the sound waves are diffracted more, leading to an increase in the diffraction angle.

Imagine That Sound Waves with a Certain Definite Wavelength Flow