A guitar produces a sound which has a frequency of 300 Hz and a wavelength of 1.3 m. Calculate the speed with which this sound travels.
390

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Solution

The correct option is A 390
The wave velocity v, frequency f, and wavelength $λ$ are related as v = f $λ$ .
f = 300 Hz, $λ$ = 1.3 m
Speed v = f $λ$ = 300 $\times$ 1.3 = 390 m/s

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A guitar produces a sound which has a frequency of 300 Hz and a wavelength of 1.3 m. Calculate the speed with which this sound travels.390

The correct option is A 390The wave velocity v, frequency f, and wavelength λ are related as v = f λ. f = 300 Hz, λ = 1.3 m Speed v = fλ = 300 × 1.3 = 390 m/s

A guitar produces a sound which has a frequency of 300 Hz and a wavelength of 1.3 m. Calculate the speed with which this sound travels.
390

The correct option is A 390
The wave velocity v, frequency f, and wavelength $λ$ are related as v = f $λ$ .
f = 300 Hz, $λ$ = 1.3 m
Speed v = f $λ$ = 300 $\times$ 1.3 = 390 m/s