(a) Name four ways in which sound can be produced.

(b) Calculate the speed of a sound wave whose frequency is 2 kHz and wavelength 65 cm.

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Solution

(a) Sound can be produced by the vibration of vocal chords, blowing air in the flute, striking a drum, explosion.
(b)

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Similar questions

220 H z

440 m / s

440 m s^{- 1}

2 k H z

1.4 k m

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(1) Sound wave has frequency 320 Hz and wavelength 0.25 m. How much distance will it travel in 10 second.

[Ans : 800 m.]

(2) A sound wave having certain frequency travels with a speed of 336 m/s and wavelength 3 cm. calculate the frequency. Will it be audible?

[11200 Hz, Yes.]

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