Figure 1 shows a standing wave set up on a wire of length 59 cm. The wire is vibrated at a frequency of 150 Hz. The dashed line represents the equilibrium position.
Figure 1
Calculate the speed of transverse waves along the wire.
Calculate the first harmonic frequency of the wire in Figure 1.
Figure 2 shows points X, Y and Z on the wire.
Figure 2
State the phase relationship between points:
- X and Y
- Y and Z
- X and Z
The wire is then vibrated at a frequency of 300 Hz.
Sketch the new shape of the stationary wave on Figure 3 and show on your diagram three points, A, B and C that oscillate in phase.
Figure 3
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