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Waves and Sounds

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Wave Amplitude in a Water Tank

WAVES-3V1$ID

A mechanical oscillator attached to a long horizontal bar creates transverse water waves in a tank containing water 2.75 cm deep. A floating sensor in the tank measure the depth of the water as a function of time as the wave passes. A plot of the depth measurement versus time is shown below.

Water depth as a function of time as a wave passes. Created for Albert.io. Copyright 2016. All rights reserved.

What is the amplitude of the sinusoidal water waves?

A

0.5 m

B

3.0 m

C

2.5 m

D

0.25 m

E

1.375 m