Sound Waves

  • #1

Homework Statement



To check the frequency of an unknown tuning fork, it is struck with one that vibrates at 256 Hz. While they vibrate together, beats with a period of 2 seconds are heard. What are the two possible frequencies for the unknown fork?

Homework Equations



f1-f2 = beats

1/T = f

The Attempt at a Solution


f1= 256Hz
Tb = 2 s
f = 1/2s = .5 Hz
f1-f2 = .5 Hz
f2 = 256.5 or 255.5

Is this correct? I think the wording threw me off.
 

Answers and Replies

  • #2
LowlyPion
Homework Helper
3,090
5
Looks OK.
 
  • #3
OK. Thanks for helping!
 

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