Question

A sound signal of 128 vibrations per second has a wave length of 2.7m , calculate the speed with which the wave travels

Answer 1

Velocity = wavelength × frequency(vibration)
v = 2.7 × 128
v = 27 /10 × 128
v = 27×64/5
v = 1728/5
$therefore \: v \: = 345.6$

Answer 2

Explanation:

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The speed with which the wave travel is 345.6 m/s.

In this case, a sound signal of 128 vibrations per second has a wavelength of 2.7 m