What is the velocity of a wave if there are #25# waves in a span of #50cm# and their frequency is #60# per second?

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Answer 1 · 2017-04-24T13:54:12

Velocity is #60# cm/sec.

Veloccity of wave is frequency multiplied by wavelength.

As wavelength is #50/25=2# #cm.#

and frequency is #30# #hz.#

Velocity is #30xx2=60# cm/sec.

Answer 2 · 2017-04-24T13:54:28

0.60 m/s

Since there are 25 waves in 50cm,
wavelength

#lamda=0.50/25=0.020m#.

We know that #v=flamda#

so

#v=(30)(0.020)=0.60m/s#.