Diffraction from foghorns is best if the waves being diffracted are
A)long.
B)short.
C)either of these
D)neither of these

Question

Quizplus · Accepted Answer

Diffraction is the bending of waves around obstacles or through openings. The extent of diffraction depends on the wavelength of the wave and the size of the obstacle or opening. Longer waves diffract more than shorter waves, so for foghorns, which emit long sound waves, diffraction is best when the waves being diffracted are long. Therefore, option A is the best choice.

Diffraction from Foghorns Is Best If the Waves Being Diffracted