This has to be a typo... (fundamental wave question)

[Enoko]

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NOVA Physics, the 2005 version.

A review question in the periodic motion section is as follows

If the fundamental wave has a frequency of Fx and the first harmonic has a frequency of Fy, what is the ratio of (Fx)/(Fy)

A) 0.5
B) 1
C) 2.0
D) 7


Book claims A, which I'm pretty sure is a typo since aren't Fundamental and First Harmonic the same thing? It would think it has to be B, or am I just really missing something here...😕

 

[UnlikelyDoc]

I'm pretty sure you're right

 

[MLT2MT2DO]

Yup typo

 

[TieuBachHo]

It depends on the functions of (x) and 👍. Do you have a graphical data or an additional info that is given? You can't tell the answer from that question alone. Remember the first harmonic of diff. waves (example: closed or opened pipes)has diff. frequencies.

 

[yummyoatmeal]

You're right.

First harmonic = fundamental.

First overtone = 2nd harmonic.

Answer would be (A) if Fy were first overtone.
Answer is (B) since Fy is first harmonic.