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Calculate the wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given medium.
Explain how 'echo' is produced.
What should be the minimum distance between the listener and the reflector to hear an echo of sound propagating with a speed v m s⁻¹?
Does the speed of sound increase or decrease on a hotter day? Justify.
Establish the relationship between speed of sound, its wavelength and frequency. If speed of sound in air is 340 m s⁻¹, calculate.
The given graph (Fig.12.2) shows the displacement versus time relation for a disturbance travelling with velocity of 1500 m s⁻¹. Calculate the wavelength of the disturbance.
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