5. If a wave has a wavelength of 20m and a speed of 100 m/s, what is the period of the oscillation?

v = wavelength / period
100 = 20 / period

100*20 = periodperiod = 20 / 100
2000 s = period

OR

period = 20 / 100
period = 0.2 s

I don't know which one is correct, please help?!

1 answer

v=w*f=w/t
T=w/v=20/100 sec

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