The speed of a wave in a certain medium is 900 m/s. If 3000 waves passes over a certain point of the medium in 2 minutes, then compute its wavelength.

Explanation

Given :
Speed (v) =`900 m//s`
`{:("No of waves produced"),("in 20 sec (2 min)"):}}= 300`
`:.` In 1 sec `(f)=(3000)/(120)`
To find `lambda= ??`
Formula `lambda-(V)/(f)`
`=(900)/((3000)/(120))=36 m`