Question

what is the period of a wave if the wavelength 100 m and the speed is 200 m/s?

A: 200,000 s

B: 0.5 s

C: 100 s

D: 2 s

Answer 1

Don't know sorry..........

Answer 2

v=frequency*wavelength
1/frequency=wavelength/velocity
1/frequency =T
T=0.2 s