Question

What is the speed of a wave with a wavelength of 10 mm and a frequency of 5.0 Hz?
A. 2 mm/s

B. 0.5 mm/s

C. 15 mm/s

D. 50 mm/s

Answer 1

50mm/s

speed=f*wavelenght

speed= 5*10= 50

Answer 2

frequency times wavelength equals 50 millimeters /s