A Vibrating String An oscillator creates periodic waves on a stretched string. P

Question

A Vibrating String An oscillator creates periodic waves on a stretched string. Part A the period of the oscillator doubles, what happens to the wavelength and wave speed? O The wavelength is unchanged but the wave speed doubles, O The wavelength doubles but the wave speed is unchanged. The wavelength is halved but the wave speed is unchanged. Hints My Answers Give Up Review Part Part B lfthe amplitude of the oscillator doubles, what happens to the wavelength wave speed? and Both wavelength and wave speed are unchanged. The wavelength is unchanged but the wave speed doubles. The wavelength doubles but the wave speed is unchanged. Submit My Answers Glye Up

Explanation / Answer

The wavelength doubles but the wave speed is unchanged. b

Part B

If the amplitude of the oscillator doubles, what happens to the wavelength and wave speed?

As you have discovered, when waves travel along a string, the wave speed remains unchanged, unless the properties of the string are changed. The wavelength can be varied only by changing the frequency, or alternatively the period, of the oscillator that creates the waves.

18.2

l = v/f
Frequency= 14 wave/min which also

= .2333 waves/sec

v= f

= .2333 x 35

= 8.16 m/s

part A

The wavelength doubles but the wave speed is unchanged. b

Part B

If the amplitude of the oscillator doubles, what happens to the wavelength and wave speed?

Both wavelength and wave speed are unchanged.

As you have discovered, when waves travel along a string, the wave speed remains unchanged, unless the properties of the string are changed. The wavelength can be varied only by changing the frequency, or alternatively the period, of the oscillator that creates the waves.

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