The period of a wave with speed 351m/s and a wavelength of 4.20m is 0.012s
Wave is a disturbance created by a vibration of particles that travel through a medium from one position to another.
There are 2 type of waves, longitudinal and transverse waves.
Longitudinal wave is a type of wave which the virbation of the medium is parallel with the direction of the wave travels. Transverse wave is a wave which its vibration is perpendicular to the direction of the wave travels.
Wavelength (λ) is the distance between two identical successive point in one wave. Frequency (f) is the number of waves that pass through a fixed point in a given period of time. Period (T) is the number of time needed for a wavelength to passes one fixed point.
The speed of a wave could be calculated by dividing the wavelength with the frequency of a wave.
v = λ . f
Knowing that period (T) is the reciprocal of frequency (f), hence:
v = λ/T
In the case, we could find the period of the wave by using the data given;
v = 351m/s
λ = 4.20m
T = ?
v = λ/T
351 m/s = 4.20m / T
T = 0.012s
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