When a string of a guitar is plucked, the wooden body of the guitar will also vibrate causing the air molecules inside the guitar to vibrate, thereby producing sound. This is an example of __________.

A. rarefaction
B. forced vibration
C. refraction
D. resonance

Question

When a string of a guitar is plucked, the wooden body of the guitar will also vibrate causing the air molecules inside the guitar to vibrate, thereby producing sound. This is an example of __________.

A. rarefaction
B. forced vibration
C. refraction
D. resonance

anonymous · Answer

I have to say, I am not 100% Positive about my answer, but I am very much sure that the answer is:

"B) Forced Vibration"

Hope I helped,
- Skai

theeric · Answer

Hello! I think rarefraction is an important quality of sound, but not the main principle here! As a sidenote, @SkyCuboid , we need to watch about giving answers without explanation or discussion! See the $\frak \href{\code-of-conduct}{Code\ of\ Conduct}$ to see the rules on that, if you want :)

So, @reedierenee , have you narrowed down your choices at all?

anonymous · Answer

I apologize for that theEric, I was not aware of that. However I was pretty sure that the answer is "B", hence I replied.

- Skai

theeric · Answer

We could go by process of elimination. What is rarefraction? Does it explain why the strings vibrate the guitar which vibrates the air? Haha, not a problem, @SkyCuboid ! http://www.physicsclassroom.com/class/sound/u11l4b.cfm @reedierenee if you're still unsure, that's a good link to read!