Speed of transverse string waves

Click For Summary
SUMMARY

The speed of transverse string waves on a piano string of length 1.5 m and mass density 25 mg/m vibrating at a fundamental frequency of 460 Hz can be calculated using the formula v = sqrt(FL/m). By substituting the values, v = sqrt(37.5 * 1.5 / 25) yields the correct speed. Additionally, the relationship v = λf indicates that knowing the fundamental frequency allows for the determination of the wavelength, λ, which is essential for complete wave analysis.

PREREQUISITES
  • Understanding of wave mechanics and properties of waves
  • Familiarity with the wave equation v = λf
  • Knowledge of mass density and its application in wave speed calculations
  • Basic proficiency in algebra for manipulating equations
NEXT STEPS
  • Research the relationship between frequency and wavelength in string vibrations
  • Explore the effects of tension (F) on wave speed in strings
  • Learn about harmonic frequencies and their implications for string instruments
  • Investigate the impact of mass density on wave propagation in different materials
USEFUL FOR

Physics students, music instrument makers, and anyone interested in the mechanics of wave propagation in strings.

babykeys23
Messages
1
Reaction score
0
A piano string of length 1.5 m and mass density 25mg/m vibrates at a (fundamental) frequency of 460 Hz.
What is the speed of the transverse string waves?


v=sqrt (FL/m)

v= sqrt (37.5*1.5/25)

is this the right track?
 
Physics news on Phys.org
I would try using the equation:

[tex]v=\lambda f[/tex]

You know f already. All you need then, is the wavelength,[tex] \lambda[/tex]. You know the wave is vibrating at a fundamental frequency. Does this tell you anything about the wavelength of that wave?
 

Similar threads

  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 23 ·
Replies
23
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 29 ·
Replies
29
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 8 ·
Replies
8
Views
1K
Replies
13
Views
2K
Replies
1
Views
2K
  • · Replies 15 ·
Replies
15
Views
2K