Advertisements
Advertisements
Question
Calculate the wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given medium.
Advertisements
Solution
Frequency of the sound wave, v = 220 Hz
Speed of the sound wave, v = 440 m s−1
For a sound wave,
Speed = Wavelength × Frequency
v = `lamda xx nu`
∴ `lamda` = `"v"/nu`
= `440/220`
= 2 m
Hence, the wavelength of the sound wave is 2 m.
APPEARS IN
RELATED QUESTIONS
You recognize your friend by hearing his voice on a telephone. Explain.
Define the term amplitude of a wave. Write its S.I. unit.
Define the term wave velocity. Write its S.I. unit.
The separation between two consecutive crests in a transverse wave is 100 m. If wave velocity is 20 m s-1, find the frequency of wave.
Name the factors on which the speed of sound depends.
What cause sound? Why do we require a material medium for the transmission of sound?
The sound produced by a thunderstorm is heard 10 s after the lightning is seen. Calculate the approximate distance of the thunder cloud. (Given the speed of sound = 340 m s–1.)
