Question

a periodic wave has a wavelenght of 40 on and a speed of 20 m/s what is the wave frequency

Answer 1

Answer:

0.5Hz

Explanation:

Speed of a wave = Wave Frequency × wavelength

20 = wave frequency × 40

(Divide both sides by 40)

wave frequency = 20 /40

= 1/2 = 0.5Hz