The Standing Waves in Air in a Pipe of Length $\lambda$

question 16

Multiple Choice

The standing waves in air in a pipe of length L that is open at one end and closed at the other have a speed v.The frequencies of the three lowest harmonics are

• A)v/4L,v/2L,and 3v/4L
• B)v/2L,v/L,and 3v/2L
• C)\(\lambda\)/4,\(\lambda\)/2,and 3\(\lambda\)/4
• D)v/4L,3v/4L,and 5v/4L
• E)\(\lambda\)/3,2\(\lambda\)/3,and 3\(\lambda\)/3

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Definitions:

Phi

Represents the Golden Ratio, approximately equal to 1.618, which is considered aesthetically pleasing in art and architecture; also a symbol used in psychology by Wolfgang Köhler for the phi phenomenon, an optical illusion of perceived motion.

Motion Parallax

A depth cue in which objects closer to the observer move faster across the visual field than objects farther away, giving a sense of depth and distance.

Figure Ambiguity

The quality of an image or representation that leads to multiple interpretations due to its unclear form.

Interposition

A visual cue in depth perception where one object partly covers another, indicating that the former is closer to the viewer than the latter.