Page 14 - WAVES

Exercise 6.1.1

1. Determine wave length and amplitude from 3. A whistle produces a sound at a frequency of
the graph given below. 400 Hz. If the speed of the sound is 600ms ,
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determine the wavelength of the sound
Displacement
18 cm wave.

λ = 1.5 m

Time
5 cm

λ = 12 cm
a = 2.5 cm 4.
12 cm

2. A slinky spring vibrated to generate
longitudinal waves.

40 cm
Determine wave length of water wave from

the diagram given above.

λ = 1.5 cm

20 cm
The wavelength of the waves is _________.

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