Calculating Fundamental Frequency of Vibrating String

[newtons1L]

Homework Statement

Determine fundamental frequency of a vibrating string if two successive harmonics of the string are 180hz and 270hz

Homework Equations

f=1/t
t=1/f

The Attempt at a Solution

I want to say its just f=1/t for both of them but it seems to easy?no?

 

[Dick]

You don't know what harmonics are, now do you? Why don't you look it up and then we can talk about this further.

 

[newtons1L]

OH uhh i still don't get it, it kind of clears somethings but still doesn't help, so if you could point me in a closer direction, or a another hint i would be very grateful sir!

 

[Dick]

Try this. http://en.wikipedia.org/wiki/Harmonic Harmonics are multiples of the fundamental frequency, right?

 

[newtons1L]

OKay so everything but the first paragraph seemed irrelevant to me, so this is what i extracted, f is multiplied by an integer and harmonic frequencies are equally spaced by tthe width of the fundamental frequency.

 

[rl.bhat]

According to the table given in the link, for successive harmonics,
fn = 180 and f(n+1) = 270.
Can you find f now?

 

[newtons1L]

YES i got it thank you so much !90!