What is the period and speed of the wave?

Question

A periodic wave traveling in a uniform medium has a wavelength of 0.080 meter, an amplitude of 0.040 meter and a frequency of 5.0 Hertz.

 

(a) Determine the period of the wave

 

(b) Calculate the speed of the wave

Answer 1

(a)

T = period = 1/frequency

T = 1 / (5.0 Hz) = 0.20 s

(b)

v = speed = wavelength x frequency

v = (0.080 m)(5.0 Hz) = 0.40 m/s