Find the velocity of a wave whose frequency is 60 Hz and wavelength is 20 m.

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Solution

We have , a relation in frequency $f$ and wavelength $λ$ of a wave having the velocity $v$ as ,
$v = f λ$ ,
given $f = 60 H z$ , $λ = 20 m$ ,
therefore velocity of wave , $v = 60 \times 20 = 1200 m / s$

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Find the velocity of a wave whose frequency is 60 Hz and wavelength is 20 m.

We have , a relation in frequency f and wavelength λ of a wave having the velocity v as , v=fλ ,given f=60Hz , λ=20m ,therefore velocity of wave , v=60×20=1200m/s

We have , a relation in frequency $f$ and wavelength $λ$ of a wave having the velocity $v$ as ,
$v = f λ$ ,
given $f = 60 H z$ , $λ = 20 m$ ,
therefore velocity of wave , $v = 60 \times 20 = 1200 m / s$